1. DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (Warrant, USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Warrant
Warrant liability - fair value measurements using significant unobservable inputs (Level 3)
Balance at March 31, 2012	$ 1,641
Change in fair value of warrant liability included in earnings	(730)
Balance at June 30, 2012	911
Change in fair value of warrant liability included in earnings	1,125
Balance at September 30, 2012	2,036
Change in fair value of warrant liability included in earnings	1,182
Balance at December 31, 2012	$ 3,218