Inventories

Inventories as of March 31, 2016 and December 31, 2015 were as follows:



In thousands	March 31, 2016			December 31, 2015
Raw materials	$	20,956		$	17,128
Work in process	16,288			14,670
Finished goods	14,143			15,048
	51,387			46,846
Less: Progress billings	(236		)	(316		)
Total inventories	$	51,151		$	46,530

Included in work in process is gross tooling inventory of $9.8 million and $9.5 million at March 31, 2016 and December 31, 2015, respectively. Tooling inventory, net of progress billings, was $9.6 million and $9.2 million at March 31, 2016 and December 31, 2015, respectively.