v3.7.0.1
STOCK-BASED COMPENSATION - Stock Repurchase Program (Details) - USD ($)
1 Months Ended 3 Months Ended
Feb. 29, 2016
Mar. 31, 2017
Mar. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
Amount authorized under stock repurchase program $ 10,000,000    
Stock repurchase program expiration date Jun. 30, 2017    
Number of shares repurchased in period   0 153,176
Value of shares repurchased in period     $ 800,000
Average cost of repurchased shares (in usd per share)     $ 5.09