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RENTAL EXPENSE, COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2014
RENTAL EXPENSE, COMMITMENTS AND CONTINGENCIES
Rental expense	$ 500	$ 500	$ 800
Outstanding surety bonds	$ 4,800	$ 4,800		$ 4,800
Percentage of annual fees on surety bonds	1.50%
Percentage of upfront deposit on surety bonds	10.00%
Surety bonds upfront deposit amount	$ 500
Lease Obligations
2015	2,510
2016	545
2017	554
2018	558
2019	555
Purchase Commitments
2015	267
Total
2015	2,777
2016	545
2017	554
2018	558
2019	$ 555

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Amount of contractual obligation maturing in the fifth fiscal year following the latest fiscal year.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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