5.	Inventories

Inventories consisted of the following:

(Table only in thousands)	2015			2014
Raw materials	$	24,339		$	18,848
Work in process		6,443			2,644
Finished goods		2,717			2,492
Obsolescence allowance		(990	)		(568	)
	$	32,509		$	23,416

Amounts credited to the allowance for obsolete inventory and charged to cost of sales amounted to $(0.7) million, $(0.6) million and $0.1 million during 2015, 2014 and 2013, respectively. Items charged to the allowance for inventory write-offs were $0.2 million, $0.5 million, and zero during 2015, 2014, and 2013, respectively.