DESCRIPTION OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

3 Months Ended

Mar. 31, 2013

DESCRIPTION OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Schedule of inventory

	March 31,		December 31,
(in thousands)	2013		2012
Raw materials	$	3,531	$	5,668
Work-in-process	4,518		1,846
Finished goods	—		—
Total inventory	$	8,049	$	7,514