Quarterly report pursuant to Section 13 or 15(d)

STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION - Schedule of Assumptions Used to Valuing Stock Purchase Plan (Details)

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STOCK INCENTIVE PLANS AND SHARE-BASED COMPENSATION - Schedule of Assumptions Used to Valuing Stock Purchase Plan (Details) - Stock purchase plan - $ / shares
6 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option life (in years) 6 months 6 months
Risk free interest rate 0.09% 0.06%
Stock price volatility rate 64.61% 32.19%
Weighted-average grant date fair value per share (usd per share) $ 0.38 $ 0.30