Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-008169-index-headers.html | 2020-04-22 08:50:31 | |
| 0001437749-20-008169-index.html | 2020-04-22 08:50:31 | |
| 0001437749-20-008169.txt | 2020-04-22 08:50:31 | |
 0001437749-20-008169-xbrl.zip | 30345 | 2020-04-22 08:50:31 |
| ex_182183.htm | 207059 | 2020-04-22 08:50:31 |
| FilingSummary.xml | 1765 | 2020-04-22 08:50:31 |
| Financial_Report.xlsx | 5822 | 2020-04-22 08:50:31 |
| MetaLinks.json | 19880 | 2020-04-22 08:50:31 |
| ottr-20200420.xsd | 3699 | 2020-04-22 08:50:31 |
| ottr-20200420_def.xml | 11975 | 2020-04-22 08:50:31 |
| ottr-20200420_lab.xml | 16020 | 2020-04-22 08:50:31 |
| ottr-20200420_pre.xml | 12184 | 2020-04-22 08:50:31 |
| ottr20200421_8k.htm | 41154 | 2020-04-22 08:50:31 |
| ottr20200421_8k_htm.xml | 2669 | 2020-04-22 08:50:31 |
| R1.htm | 40416 | 2020-04-22 08:50:31 |
| report.css | 2767 | 2020-04-22 08:50:31 |
| Show.js | 1084 | 2020-04-22 08:50:31 |