DEBT (Details) |
1 Months Ended | 3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|---|
Nov. 30, 2015 |
Jun. 30, 2017
USD ($)
|
Jun. 30, 2016 |
Jun. 30, 2017
USD ($)
|
Jun. 30, 2016 |
Dec. 31, 2016
USD ($)
|
|
| Debt Instrument [Line Items] | ||||||
| Line of Credit Facility, Expiration Period | 2 years | |||||
| Debt, non-current | $ 20,000,000 | $ 20,000,000 | $ 0 | |||
| Revolving Credit Facility | ||||||
| Debt Instrument [Line Items] | ||||||
| Maximum borrowing capacity | 20,000,000.0 | $ 20,000,000.0 | ||||
| Required liquidity ratio | 1.25 | |||||
| Requitred minimum cash balance as of the last day of each month | 35,000,000 | $ 35,000,000 | ||||
| Potential increase in interest rate | 5.00% | |||||
| Debt, non-current | $ 20,000,000 | $ 20,000,000 | ||||
| Revolving Credit Facility | Weighted Average | ||||||
| Debt Instrument [Line Items] | ||||||
| Interest rate during the period | 2.90% | 2.22% | 2.74% | 2.37% | ||
| Revolving Credit Facility | Prime Rate | ||||||
| Debt Instrument [Line Items] | ||||||
| Basis spread on variable rate | 1.00% | |||||
| Revolving Credit Facility | LIBOR | ||||||
| Debt Instrument [Line Items] | ||||||
| Basis spread on variable rate | 1.75% | |||||