Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-005746-index-headers.html | 2020-03-20 11:38:32 | |
| 0001437749-20-005746-index.html | 2020-03-20 11:38:32 | |
| 0001437749-20-005746.txt | 2020-03-20 11:38:32 | |
 0001437749-20-005746-xbrl.zip | 21647 | 2020-03-20 11:38:32 |
| ex_178281.htm | 4842 | 2020-03-20 11:38:32 |
 ex_178281img001.jpg | 4962 | 2020-03-20 11:38:32 |
| ex_178282.htm | 63291 | 2020-03-20 11:38:32 |
| FilingSummary.xml | 1796 | 2020-03-20 11:38:32 |
| Financial_Report.xlsx | 5858 | 2020-03-20 11:38:32 |
| MetaLinks.json | 20401 | 2020-03-20 11:38:32 |
| ottr-20200320.xsd | 3699 | 2020-03-20 11:38:32 |
| ottr-20200320_def.xml | 12361 | 2020-03-20 11:38:32 |
| ottr-20200320_lab.xml | 16564 | 2020-03-20 11:38:32 |
| ottr-20200320_pre.xml | 12625 | 2020-03-20 11:38:32 |
| ottr20200320_8k.htm | 23764 | 2020-03-20 11:38:32 |
| ottr20200320_8k_htm.xml | 2763 | 2020-03-20 11:38:32 |
| R1.htm | 41955 | 2020-03-20 11:38:32 |
| report.css | 2767 | 2020-03-20 11:38:32 |
| Show.js | 1085 | 2020-03-20 11:38:32 |