ACCRUED LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2013

ACCRUED LIABILITIES

Schedule of Accrued liabilities

	March 31, 2013		December 31, 2012
Product performance	$	3,861	$	3,959
Grants	2,253		2,320
Salaries and wages	802		1,021
Professional fees	366		732
Restructuring	226		200
Environmental	91		105
Other	1,426		2,039
Total	$	9,025	$	10,376