EDGAR Filing Documents for 0001466593-23-000053

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:

SEC Accession No. 0001466593-23-000053

Filing Date

2023-02-15

Accepted

2023-02-15 13:57:03

Documents

143

Period of Report

2022-12-31

Document Format Files

Seq	Description	Document	Type	Size
1	10-K	ottr-20221231.htm iXBRL	10-K	3912429
2	EX-10.28	ex1028summaryofnon-employe.htm	EX-10.28	9499
3	EX-10.36	a2022ex1036formofcicsevera.htm	EX-10.36	47288
4	EX-21	a2022ex21subsidiariesofreg.htm	EX-21	6577
5	EX-23	a2022ex23consentofindepend.htm	EX-23	2342
6	EX-24	a2022ex24powerofattorney.htm	EX-24	11208
7	EX-31.1	a202210-kex311.htm	EX-31.1	9694
8	EX-31.2	a202210-kex312.htm	EX-31.2	9554
9	EX-32.1	a202210-kex321.htm	EX-32.1	4364
10	EX-32.2	a202210-kex322.htm	EX-32.2	4345
16	GRAPHIC	ottr-20221231_g1.jpg	GRAPHIC	39932
17	GRAPHIC	ottr-20221231_g2.jpg	GRAPHIC	31199
18	GRAPHIC	ottr-20221231_g3.jpg	GRAPHIC	36413
19	GRAPHIC	ottr-20221231_g4.jpg	GRAPHIC	32608
20	GRAPHIC	ottr-20221231_g5.jpg	GRAPHIC	33254
21	GRAPHIC	ottr-20221231_g6.jpg	GRAPHIC	35039
22	GRAPHIC	ottr-20221231_g7.jpg	GRAPHIC	34377
23	GRAPHIC	ottr-20221231_g8.jpg	GRAPHIC	59538
24		ottr-20221231_g9.jpg	GRAPHIC	53869
	Complete submission text file	0001466593-23-000053.txt		18848212

Data Files

Seq	Description	Document	Type	Size
11	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT	ottr-20221231.xsd	EX-101.SCH	100404
12	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT	ottr-20221231_cal.xml	EX-101.CAL	139183
13	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT	ottr-20221231_def.xml	EX-101.DEF	505430
14	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT	ottr-20221231_lab.xml	EX-101.LAB	1144524
15	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT	ottr-20221231_pre.xml	EX-101.PRE	786493
137	EXTRACTED XBRL INSTANCE DOCUMENT	ottr-20221231_htm.xml	XML	4019050

Mailing Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496

Business Address 215 S CASCADE ST PO BOX 496 FERGUS FALLS MN 56538-0496 866-410-8780