[¶ 1] Roland C. Flattum-Riemers appealed from a district court order affirming a judicial referee’s dismissal of his application for a domestic violence protection order under N.D.C.C. ch. 14-07.1. Je-nese A. Peters-Riemers cross-appealed from the order, but subsequently withdrew thе cross-appeal. We conclude the referee did not err in considering documents filed less than 24 hours before the hearing or in denying Flattum-Riemers’ motion for a continuance. We further conclude the referee’s findings, affirmed by the trial court, are not clearly erroneous and support denial of the application for the protection order. We affirm.
I
[¶ 2] In March 2000, Peters-Riemers applied for and received a domestic violence protection order in Traill County District Court restraining Flattum-Riem-ers from contact with her.
See Peters-Riemers v. Riemers,
[¶ 3] On August 31, 2000, Flattum-Riemers filed in Grand Forks County District Court a “petition for protective relief’ against Peters-Riemers, which is the subject of this appeal. Flattum-Riemers alleged that in March 1997, Peters-Riemers “charged after me several times with kitchen knives and attempted to kill” him while they lived together in Grand Forks. He stated police were summoned, Peters-Riemers was taken to a hospital, and although both were charged with offenses, those charges were dropped “[a]t our mutual insistence.” Flattum-Riemers also alleged Peters-Riemers fractured several of his ribs during the summer of 1999, and in December 1999, she threatened him with a loaded revolver in his Buxton home. Police were again summoned, but no arrests *74 were made. Flattum-Riemers also related a-verbal and physical altercation on March 4, 2000, when Peters-Riemers attempted to leave the residence with the couple’s son. Flattum-Riemers was arrested and charged with fеlony assault after that incident. According to Flattum-Riemers, the final incidents occurred during the summer of 2000, when she contacted him, berated him, and threatened to have him arrested for violating the domestic violence protection order.
[¶ 4] Following a hearing before Judicial Referee David Vigeland, during which the parties were allowed to testify, the referee concluded Flattum-Riemers had failed to make a showing of “physical force or harm or the fear of imminent physical harm or injury,” and dismissed the petition. Flattum-Riemers timely requested а review by the district court, which affirmed the referee’s findings and order.
[¶ 5] The judicial referee had jurisdiction under N.D.C.C. § 27-05-30(2) and N.D. Sup.Ct. Admin. R. 13, § 5(a). The trial court had jurisdiction under N.D. Const, art. VI, § 8, N.D.C.C. § 27-05-06, and N.D. Sup.Ct. Admin. R. 13, § 11. Flattum-Riemers’ appeal is timely under N.D.RApp.P. 4(a). This Court has jurisdiction under N.D. Const, art. VI, § 6, and N.D.C.C. §§ 28-27-01 and 28-27-02(3).
II
[¶ 6] Peters-Riemers argues that although Flattum-Riemers’ appeal from the trial court’s decision is timely under N.D.RApp.P. 4(a), because two of the issues were not raised before the trial court, his appeal to this Court regarding these issues was untimely because his appeal was not filed within 60 days of the judicial referee’s decision. She also contends the two issues cannot be reviewed because they were not specifically identified in Flattum-Riemers’ request for review of the referee’s decision filed with the trial court.
A
[¶ 7] Under N.D. Sup.Ct. Admin. R. 13, § 10(a), the “findings and order of the judicial referee are deemed to have the effect of an order of the district court until superseded by a written order of a district court judge." (Emphasis added.) A district court may review a referee’s findings and order on its own initiative, and must do so if a party files a written request for review within three days after receiving notice of the referee’s decision. See N.D. Sup.Ct. Admin. R. 13, § 11(a). Here, Flat-tum-Riemers timely requested review of the referee’s decision. Consequently, the referee’s decision did not, in itself, become an appealable order because it was effectivеly superseded by the trial court’s written order affirming the referee’s findings and order. Flattum-Riemers was not required to appeal within 60 days from both the referee’s decision and the trial court’s decision.
B
[¶ 8] Peters-Riemers’ argument that Flattum-Riemers effectively waived two issues by not specifically including them in his request for review is also unpersuasive. Under N.D. Sup.Ct. Admin. R. 13, § 11(a), a “request for review must state the reasons for the review.” We have not addressed the specificity required for a request for review of a judicial referee’s findings and order, and the meeting minutes of the сommittees that formulated the rule shed no light on the question. We have held issues not raised in a motion for new trial may not be raised in this Court,
see, e.g., Andrews v. O’Hearn,
[¶ 9] A party requesting review of a judicial referee’s findings and order is given only three days after receiving noticе of the decision to make the request under N.D. Sup.Ct. Admin. R. 13, § 11(a). For this reason, we are reluctant to impose the specificity requirements to avoid waiver imposed in other contexts. Three days is insufficient time in many cases to obtain and analyze a record for potential errors, and to cogently and comprehensively identify them in a request for review by the trial court. Flattum-Riemers’ three-page request for review in this case includes an allegation that the referee’s order “lacks clear conclusions of laws and facts which wоuld be required for a ‘full hearing’ on this petition.” We conclude the request for review is sufficient to preserve for review the issues Flattum-Riemers has raised on appeal.
Ill
[¶ 10] When a trial court reviews a judicial referee’s decision on the record, the court examines the referee’s findings of fact under the clearly erroneous standard of N.D.R.Civ.P. 52(a).
Benson v. Benson,
A
[¶ 11] Flattum-Riemers argues the rеferee violated his due process rights and erred by allowing the submission of Peters-Riemers’ affidavit and other documents less than 24 hours before the hearing. Although the affidavit and documents were filed with the court and faxed to Flattum-Riemers late in the afternoon the day before thе morning hearing, the referee considered the documents over Flat-tum-Riemers’ objection.
[¶ 12] Under N.D.R.Civ.P. 5(d)(2), “[a]ll affidavits, notices and other papers designed to be used upon the hearing of a motion or order to show cause shall be filed at least 24 hours before the heаring
unless otherwise directed by the court.”
(Emphasis added.) Consequently, the rule by its plain language grants the trial court discretion to direct otherwise and consider untimely filed documents.
See Whitmire v. Whitmire,
[¶ 13] The referee found Flattum-Riemers was not prejudiced by the untimely filing, and Flattum-Riemers has shown no prejudice on appeal. We conclude Flattum-Riemers was not denied *76 due process and the referee did not еrr in considering the documents filed before the hearing.
B
[¶ 14] Flattum-Riemers argues the referee violated his due process rights and erred by denying his request for a week-long continuance to subpoena witnesses who would verify his testimony about Peters-Riemers’ actions.
[¶ 15] The granting of a continuance is largely discretionary, and denial of a continuance because of the absence of a material witness is proper when the moving party does not show what the witness would testify to if present or that the facts desired cannot be proven by othеr available witnesses, and when there is no showing of diligence to secure the testimony of the witness by deposition or personal appearance at trial.
See Burdick v. Mann,
A trial court has broad discretion on evidentiary matters, and we will not overturn its admission or exclusion of evidence on appeal unless that discretion has been abused. State v. Trotter,524 N.W.2d 601 , 602 (N.D.1994). Furthermore, under NDREv 103(a), error may not be predicated on a ruling that admits or excludes evidence unless a substantial right of the party is affected. See also NDRCrimP 52(a). By definition, cumulative testimony “would not make a significant contribution to proоf of a fact.” State v. Schindele,540 N.W.2d 139 , 142 (N.D.1995). While cumulative testimony may sometimes strengthen the weight and credibility of a defendant’s testimony, see State v. Wilson,466 N.W.2d 101 , 103 (N.D.1991), a trial court does not necessarily abuse its discretion by excluding evidence of this nature. See Trotter,524 N.W.2d at 602-603 . Here, any prejudicial effect from the exclusion of the cumulative еvidence was minimal because this was a bench trial rather than a jury trial. Also, although the Brandners suggest the witness’s testimony may not have been entirely cumulative, they did not make an offer of proof under NDREv 103(a)(2) on how that testimony would have differed from Clarence’s testimony.
See also State v. Johnson,
[¶ 16] Flattum-Riemers does not claim he was unfairly surprised by the evidence.
See State v. Nodland,
*77 [¶ 17] We conclude the referee did not abuse his discretion in denying the motion for continuance.
C
[¶ 18] Flattum-Riemers argues the referee errеd by not making specific findings on domestic violence, had an erroneous view of the law, erred in finding he had no real fear of Peters-Riemers, and erred in failing to rule on his motion to hold Peters-Riemers in contempt for lying in court.
[¶ 19] As allowed by N.D.R.Civ.P. 52(a), the referee stated orally in open court his findings and conclusions following the close of the evidence. We will not remand for clarification of missing or conclusory findings if we can discern the rationale for the decision through inference or deduction.
Emter v. Emter,
Mr. Riemers, as you know, you have the burden here tо establish that there is a showing of actual or imminent domestic violence and that is pursuant to 14-[07.1-02] of the North Dakota Century Code and the definitions, of course, are in Section 01 essentially including physical force or harm or the fear of imminent physical harm or injury.
And the Court has сonsidered the matter here today and I am going to conclude that you failed to meet that burden of proof and I am going to dismiss your petition here. It seems to me that many of these events have already been litigated, at least to some extent. And despite your сoncerns, you continued to live with Ms. Riemers and I just don’t see that they’re especially relevant to today.
Other courts have already considered these matters and in any case as to if they are relevant, I am not sure that they show that you have any actual or imminеnt fear of her.
The recent events are certainly disputed. I don’t consider them to be so serious ... to present a credible threat to you of harm.
Essentially, I think ... we need ... more of a showing of fear of imminent physical harm and bodily injury tha[n] we have here today. And the testimony is disputed and the testimony of the respondent is at least as credible, if not more credible, than that of the petitioner.
[¶ 20] We can discern the rationale for the referee’s decision. The referee did not believe Flattum-Riemers’ version of the incidents, and to the extеnt he believed the incidents occurred, he found they did not meet the requirements for a domestic violence protection order. Some of the altercations were previously adjudicated and resulted in a domestic violence protection order being issued against Flat-tum-Riemers. We give great deference to a factfinder’s opportunity to observe the witnesses and determine credibility.
Luna v. Luna,
IV
[¶ 21] Peters-Riemers asks this Court to award her attorney fees for this appeal under N.D.R.App.P. 38.
[¶ 22] An appeal is frivolous under Rule 38 if it is flagrantly groundless, devoid of merit, or demonstrates persistence in the course of litigation which could be seen as evidence of bad faith.
Strom-Sell v. Council for Concerned Citizens,
V
[¶ 23] The order is affirmed.