Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventories [Abstract]

Inventories

Inventories consist of the following:

	March 31,			December 31,
	2013			2012
Raw materials	$	1,921		$	2,087
Work-in-process		20,033			20,251
Finished goods		318			449
		22,272			22,787
Less: LIFO reserve		(736	)		(666	)
Total	$	21,536		$	22,121