Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-005451-index-headers.html | 2020-03-17 14:19:49 | |
| 0001437749-20-005451-index.html | 2020-03-17 14:19:49 | |
| 0001437749-20-005451.txt | 2020-03-17 14:19:49 | |
 0001437749-20-005451-xbrl.zip | 11215 | 2020-03-17 14:19:49 |
| ex_177730.htm | 11707 | 2020-03-17 14:19:49 |
 ex_177730img001.jpg | 4962 | 2020-03-17 14:19:49 |
| FilingSummary.xml | 1765 | 2020-03-17 14:19:49 |
| Financial_Report.xlsx | 5822 | 2020-03-17 14:19:49 |
| MetaLinks.json | 19880 | 2020-03-17 14:19:49 |
| ottr-20200317.xsd | 3699 | 2020-03-17 14:19:49 |
| ottr-20200317_def.xml | 11975 | 2020-03-17 14:19:49 |
| ottr-20200317_lab.xml | 16020 | 2020-03-17 14:19:49 |
| ottr-20200317_pre.xml | 12184 | 2020-03-17 14:19:49 |
| ottr20200317_8k.htm | 24951 | 2020-03-17 14:19:49 |
| ottr20200317_8k_htm.xml | 2669 | 2020-03-17 14:19:49 |
| R1.htm | 40417 | 2020-03-17 14:19:49 |
| report.css | 2767 | 2020-03-17 14:19:49 |
| Show.js | 1085 | 2020-03-17 14:19:49 |