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COMMITMENTS AND CONTINGENCIES (Details) - Jun. 30, 2015 - OCS [Member] - USD ($)
$ in Thousands
Total
Long-term Purchase Commitment [Line Items]  
Royalty rates 3.50%
Percent of grants received paid in royalties 100.00%
Proceeds from grants received $ 38,442
Accumulated interest, grants 13,360
Accumulated royalties paid 11,359
Total commitment with respect to royalty-bearing participation received, net of royalties paid $ 40,443