OPINION
¶ 1 After a case has been removed from superior court to federal district court, transferred to bankruptcy court and then remanded to superior court, does the superior court have authority to proceed with the case if the bankruptcy court clerk did not mail a copy of the order of remand to superior court? Appellants David Powley and Caroline Powley contend that the superior court proceeded without subject matter jurisdiction. For the reasons set forth in this opinion, we hold that the superior court regained its power to proceed with this case when the bankruptcy court entered the order of remand. The Powleys also argue that the superior court erred in failing to conduct a jury trial, but we conclude that the court appropriately allowed Appellees Health for Life Brands, Inc. (“HFL”) and Larry Weber to withdraw their jury trial demand. Accordingly, we affirm.
FACTS AND PROCEDURAL HISTORY
¶ 2 The Powleys purchased stock in Health for Life Brands of Arizona, Inc. (“HFLAZ”) from HFL. To accomplish the stock purchase, the Powleys signed a stock purchase agreement with HFL and also personally guaranteed payment to HFL of certain obligations of HFLAZ. Alleging that the Pow-leys failed to pay the promised amounts, HFL filed a breach of contract action in June 1998 against the Powleys in Maricopa County Superior Court. The Powleys answered, counterclaimed against HFL, and brought a third party action against Larry Weber, president of HFL. 1 HFLAZ was not a party in the superior court action.
¶ 3 In July 1998, HFLAZ filed for Chapter 11 protection in federal bankruptcy court. The Powleys then filed a notice of removal of this case to the United States District Court for the District of Arizona. The notice asserted that removal was justified under 28 U.S.C. § 1452 (1994) because the case was related to the pending HFLAZ bankruptcy proceeding.
¶ 4 Following removal, the federal district court transferred the case to the bankruptcy court because of the alleged relationship with the HFLAZ bankruptcy. HFL filed a motion asking the bankruptcy court to remand the case to the superior court. The bankruptcy court concluded that the action did not arise under bankruptcy law and was not sufficiently related to the HFLAZ bankruptcy to support federal jurisdiction and therefore granted the motion to remand. The written order of remand was entered in the bankruptcy court docket on January 3, 2000, but there is no record that a copy was mailed to the superior court. 2
¶ 5 In January 2000, HFL filed in superior court a motion for partial summary judgment on the contract claim. In a minute entry filed March 17, 2000, the court acknowledged receipt of HFL’s motion but noted that the action had been removed and that the case “has not been remanded back to Superior Court. Court staff has determined in conversation with District Court personnel that this matter was terminated in the District Court on September 14,1999, and referred to the Bankruptcy Court____Bankruptcy Court personnel advise that the bankruptcy case is still open.” The court ordered that the case be placed on the inactive calendar for dismissal on June 15, 2000 and stated that the matter is “currently within the jurisdiction of the Bankruptcy Court and presumably subject to the automatic stay.”
¶ 6 The next document in the record from superior court is a response by the Powleys to HFL’s motion for partial summary judgment, filed in April 2000. The record does not reveal if HFL’s motion was denied, withdrawn, or simply abandoned. Nor does the record contain any specific explanation or correction of the court’s statement in the March 17, 2000 minute entry that the case *538 was still within the jurisdiction of the bankruptcy court. In July 2000, HFL filed a Motion to Set and Certificate of Readiness. 3 The trial court then set the matter for trial to a jury commencing on January 31, 2001.
¶ 7 In November 2000, counsel for the Powleys filed an application for withdrawal as counsel, supported by an affidavit of counsel and the signatures of the Powleys. The application recited, immediately above the Powleys’ signatures, that the “undersigned” were “advised of the trial date of January 31, 2001 and all other pending deadlines set in this matter and have made suitable arrangements to be prepared for trial” and that they consented to the withdrawal of their attorney. The court approved the application for withdrawal of counsel.
¶ 8 Thereafter, the Powleys failed to submit a list of witnesses and exhibits, failed to participate in the preparation of a pretrial statement, and failed to appear for trial on January 31, 2001. Although HFL had previously demanded a jury trial, it agreed in open court on January 31, 2001 to proceed without a jury. The court accepted this unilateral withdrawal of the jury trial demand and conducted a bench trial. At the conclusion of trial, the court resolved the claims in HFL’s favor and entered a judgment. Our review of the record reveals no objection by the Powleys to the jurisdiction of the superi- or court, from the time of entry of the remand order in January 2000 until after the trial in January 2001. The Powleys filed post-trial motions for relief from judgment and for a new trial, challenging the jurisdiction of the superior court. These motions were denied, and this appeal followed.
THE SUPERIOR COURT’S POWER TO PROCEED
¶ 9 The Powleys argue that the bankruptcy court retained jurisdiction over this case and therefore the superior court had no power to proceed, with the result that the judgment against them is void and must be set aside. Thus, the initial issue in this appeal is whether the superior court had jurisdiction to proceed with this breach of contract action following remand from bankruptcy court. This issue poses a question of law that we independently review.
R.A.J. v. L.B.V.,
¶ 10 The Powleys assert two reasons why the superior court lacked subject matter jurisdiction to proceed with this case. First, they argue that only the federal district court, not the bankruptcy court, could order a remand to state court. Second, because the bankruptcy court clerk did not mail a copy of the order of remand to superior court as required by statute, the Powleys contend that the superior court never regained jurisdiction over the case.
¶ 11 Before addressing these arguments, however, we first consider HFL’s contention that the Powleys have waived their right to make these arguments by failing to assert them before or during trial. HFL characterizes these arguments as involving mere procedural defects rather than the absence of genuine subject matter jurisdiction. HFL then correctly points out that procedural defects are usually waived if not raised and preserved in the trial court.
See, e.g., Medina v. Arizona Dept. of Transport.,
¶ 12 On the other hand, challenges to subject matter jurisdiction may be raised at any time, including for the first time on appeal.
Swichtenberg v. Brimer,
¶ 13 We need not decide, however, if there is a difference between subject matter jurisdiction and power to proceed for all purposes. We conclude only that the issue of a state court’s power to proceed following remand from federal court is so akin to the issue of subject matter jurisdiction as to war
*539
rant application of the same rule of non-waiver.
See First State Bank of Princeton v. Leffelman,
The Bankruptcy Court Had Power to Order a Remand
¶ 14 The Powleys point out that the remand of this case was ordered by the bankruptcy court, not the district court, and they argue that the bankruptcy court does not have the authority to order a remand. Therefore, they assert that the case has never been properly remanded and the superior court never regained the jurisdiction to proceed with the case. We disagree.
¶ 15 First, a bankruptcy court is a unit of a federal district court. 28 U.S.C. § 151 (1993);
In re Price Waterhouse Ltd.,
The Superior Court Regained The Power To Proceed Upon Entry Of The Remand Order in Bankruptcy Court
¶ 16 The Powleys next argue that because the federal court clerk did not mail a copy of the order of remand as required by statute, the superior court never regained power to proceed with the case. They base this argument on a portion of the general removal statute pertaining to remand, 28 U.S.C. § 1447(c) (2002):
A motion to remand the case on the basis of any defect other than lack of subject matter jurisdiction must be made within 30 days after the filing of the notice of removal under section 1446(a). If at any time' before final judgment it appears that the district court lacks subject matter jurisdiction, the case shall be remanded. An order remanding the case may require payment of just costs and any actual expenses, including attorney fees, incurred as a result of the removal. A certified copy of the order of remand shall be mailed by the clerk to the clerk of the State court. The State court may thereupon proceed with such case. 5
*540 Relying on the last two sentences of § 1447(c), the Powleys argue that the superi- or court never regained jurisdiction or the power to proceed because the clerk of the federal court never mailed a copy of the order of remand to superior court. They emphasize that § 1447(c) places a mandatory duty on the federal court clerk to mail a copy of the remand order to the state court clerk and provides that the state court may “thereupon” proceed with the case. 28 U.S.C. § 1447(c)(2002). HFL, on the other hand, argues that the state court regained power to proceed when the bankruptcy court entered its order of remand, notwithstanding the apparent failure of the federal court clerk’s office to mail a copy to superior court. Under HFL’s argument, the word “thereupon” in the last sentence of § 1447(c) refers to the remand, rather than to the act of mailing a copy of the remand order. For the following reasons, we hold that the superior court regained the power to proceed with the case upon entry of the remand order in bankruptcy court.
¶ 17 This is an issue of first impression in Arizona. Courts from several jurisdictions have disagreed whether the decisive event is entry of the remand order or the clerk’s act of mailing the order.
Compare International Lottery, Inc. v. Kerouac,
¶ 18 We find most persuasive those cases holding that the state court has the power to proceed upon entry of the remand order in federal court. An issue as important as whether a state court may proceed with a case should be determined by the action of a federal court entering its remand order rather than by the ministerial act of a clerk in mailing a copy of the order.
See In re Lowe,
¶ 19 Our conclusion is further supported by a consideration of 28 U.S.C. §§ 1447(d) and 1452(b), which generally preclude federal appellate review of orders remanding cases to state court. 28 U.S.C. § 1447(d) (1994) (remand order “not reviewable on appeal or otherwise” except for cases removed under 28 U.S.C. § 1443
6
); § 1452(b) (1994) (remand order “not reviewable by appeal or otherwise”);
Things Remembered, Inc. v. Petrarca,
¶20 A conclusion that the superior court regains the power to proceed upon entry of the remand order in federal court prevents a case from floundering in some sort of legal limbo while awaiting the ministerial task of mailing a copy of the remand order. Excessive delay in the resolution of disputes is thereby avoided. This approach also furthers the intent of Congress that any doubts about the existence of removal jurisdiction in the federal courts should be resolved in favor of remand and state court jurisdiction.
See Steel Valley Auth. v. Union Switch & Signal Div.,
¶ 21 Citing
Bucy v. Nevada Constr. Co.,
¶ 22 The facts of
Bucy
are quite different. Bucy filed suit in an Idaho state court.
Bucy,
¶23 In contrast to the
Bucy
case, the remand order entered in bankruptcy court in this ease on January 3, 2000 has been neither set aside nor even challenged. While
Bucy
supports the inherent power of a federal court to promptly correct its mistakes, the instant case presents no issue regarding the power of the court to reconsider or correct an erroneous remand order. The Powleys did not file a motion for rehearing or motion to reconsider the remand order. Additionally, as already pointed out in ¶ 19,
supra,
appellate review of the remand order is precluded.
Things Remembered, Inc.,
¶24 For these reasons, we conclude that the Powleys’ reliance on Bucy is misplaced. It is very unlikely in our estimation that the Ninth Circuit, if faced with the fact pattern of this case, would rule that the federal court *542 retained jurisdiction for more than a year while the parties acquiesced in the remand and litigated in state court, notwithstanding the failure of the clerk to mail a copy of the remand order to state court.
¶ 25 The Powleys also rely on
Trans Penn Wax Corp.,
The general .rule is that a district court loses jurisdiction over a case once it has completed the remand by sending a certified copy of the remand order to the state court____But the physical mailing of the certified copy is the key jurisdictional event to divest the district court of jurisdiction, because a remand order is not self-executing.
Id.
at 225 (citations omitted). Similar to
Bucy,
however,
Trans Penn Wax
did not involve the entry of a remand order followed by litigation of the case in state court without the federal court clerk’s office having sent a copy of the remand order to state court. Although the court in
Trans Penn Wax
recited what it considered to be a general rule regarding the significance of the mailing of the remand order, the court was not faced with the issue presented in this case. The quoted language from
Trans Penn Wax
is merely dictum, as recognized by a subsequent Third Circuit case.
Hudson United Bank v. LiTenda Mortgage Corp.,
¶26 Finally, the Powleys claim that the superior court’s minute entry filed March 17, 2000, described in ¶ 5, supra, supports their position that jurisdiction remains in federal court. The information reflected in the minute entry, however, is. simply not accurate and does not represent a legal analysis regarding jurisdiction. The record before us contains a copy of the remand order showing a bankruptcy court date stamp of December 29, 1999 and also includes a copy of the bankruptcy court docket that records the filing of the remand order on December 29, 1999 followed by entry of the order on January 3, 2000. Also, each side in this dispute has acknowledged that the bankruptcy court did, in fact, order the case remanded to superior court. The superior court’s statements in the minute entry filed March 17, 2000 were evidently based on the unfortunate absence of the remand order in the court file coupled "with erroneous information from someone at bankruptcy court. The statements in the minute entry do not represent an adjudication of the superior court’s power to proceed with this case, nor did they diminish the court’s jurisdiction or power to proceed.
¶ 27 For these reasons, the superior court regained the power to proceed with this case upon entry of the remand order in bankruptcy court. The failure of the federal court clerk’s office to mail a copy of the remand order to superior court does not defeat the superior court’s jurisdiction or power to proceed.
THE POWLEYS FORFEITED THEIR RIGHT TO A JURY TRIAL
¶ 28 The Powleys filed a motion for a new trial contending that they were denied their right to a jury trial because they did not consent to HFL’s waiver of its jury trial demand. The trial court denied the motion, without setting forth reasons for its decision. We apply an abuse of discretion standard when reviewing the denial of a motion for new trial.
Piper v. Bear Med. Sys., Inc.,
¶ 29 HFL argues that we should follow the case of
Bloch v. Bentfield,
a party to a civil action fails to appear for a trial that by his failure he has waived his right to a jury trial of the controversy. *543 The trial court is then [empowered], in its discretion, to proceed to hear the evidence and to resolve the controversy without the benefit of a jury.
Id.
at 418,
¶ 30 The Powleys contend, however, that
Bloch
was overruled
sub silentio
in
Gillette v. Lanier,
Under such circumstances however the court may proceed to hear the plaintiffs evidence in the same manner as though the defendant were present and, if a prima facie case is established, may render appropriate judgment.
Id.
at 68,
¶ 31 As in this ease, the
Gillette
plaintiff obtained a judgment against the defendant after a bench trial.
Id.
at 67,
CONCLUSION
¶ 32 We hold that the trial court regained the power to proceed with this breach of contract action upon the bankruptcy court’s entry of the remand order. We also determine that the court did not abuse its discretion in denying the motion for new trial. The judgment is affirmed.
Notes
. For convenience, HFL and Weber will be referred to simply as HFL in this decision unless the context requires otherwise.
. The superior court did receive a copy of the remand order from counsel, fifteen months later, on March 30, 2001.
. Although the minute entry filed on March 17, 2000 said that the case would be placed on the inactive calendar for dismissal on June 15, 2000, the subsequent record contains no order of dismissal nor any objection to HFL’s Motion to Set and Certificate of Readiness filed on July 7, 2000.
. Because the bankruptcy court is a unit of the federal court, the phrase "federal court” is used in this decision as including the bankruptcy court, unless the context requires otherwise.
. The bankruptcy-specific removal statute, 28 U.S.C. § 1452, does not contain any reference to the duty of the clerk to mail a certified copy of the remand order to the state court. In years past, some federal courts held that where the removal was made, as here, on the basis of 28 U.S.C. § 1452, any remand would likewise be governed by § 1452 rather than the general removal statute, 28 U.S.C. § 1447.
See In Re Federal-Mogul Global, Inc.,
. This exception is not applicable in this case.
