DEBT AND CREDIT ARRANGEMENTS - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 25,452 | $ 17,538 |
| Current portion of long-term debt with affiliate | 113 | 107 |
| Total long-term liabilities | 25,339 | 17,431 |
| Note payable to Squadron | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 20,000 | 11,401 |
| Revolving credit facility with Squadron | Revolving Credit Facility | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 3,921 | 4,500 |
| Mortgage payable to affiliate | ||
| Debt Instrument [Line Items] | ||
| Long-term Debt | 1,531 | 1,637 |
| Current portion of long-term debt with affiliate | $ 113 | $ 107 |