v3.8.0.1
STOCK-BASED COMPENSATION - Stock Repurchase Program (Details) - USD ($)
1 Months Ended 9 Months Ended 21 Months Ended
Feb. 29, 2016
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
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, 2018      
Number of shares repurchased in period   796,616 364,627 1,161,243
Value of shares repurchased in period   $ 3,000,000 $ 2,100,000 $ 5,200,000
Average cost of repurchased shares (in usd per share)   $ 3.80 $ 5.87 $ 4.45
Remaining amount available for repurchases under the program   $ 4,800,000   $ 4,800,000