Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net sales	$ 28,692	$ 42,061	$ 58,358	$ 75,989
Cost of sales	28,643	44,223	57,529	83,588
Gross profit (loss)	49	(2,162)	829	(7,599)
Selling, general and administrative expense	3,571	4,091	7,412	8,690
Restructuring expense			881
Operating loss	(3,522)	(6,253)	(7,464)	(16,289)
Other income (expense)	194	(4)	184	35
Interest income		3		3
Interest expense	(115)	(119)	(252)	(237)
Loss before income taxes	(3,443)	(6,373)	(7,532)	(16,488)
Income tax benefit	(1,375)	(131)	(1,596)	(663)
Net loss	$ (2,068)	$ (6,242)	$ (5,936)	$ (15,825)
Basic and diluted loss per share (in dollars per share)	$ (0.22)	$ (0.65)	$ (0.62)	$ (1.65)
Shares used in per share calculations:
Basic and diluted (in shares)	9,610	9,580	9,607	9,576