CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income
Sales	$ 35,298	$ 26,466
Cost of sales	(22,956)	(16,989)
Gross profit	12,342	9,477
Operating expenses:
Selling, general and administrative	(6,633)	(6,873)
Research and development	(2,262)	(2,187)
Pension	(522)	(1,147)
Pension settlement	(3,620)
Total operating expenses	(13,037)	(10,207)
Operating loss	(695)	(730)
Interest expense	(429)	(629)
Other income (expense), net	(163)	77
Loss before income tax benefit (provision)	(1,287)	(1,282)
Income tax benefit (provision)	12	(23)
Net loss	$ (1,275)	$ (1,305)
Net loss per common share - basic and diluted	$ (0.11)	$ (0.12)
Weighted average common shares outstanding - basic	11,150	11,089
Weighted average common shares outstanding - diluted	11,150	11,089
Comprehensive income (loss), net of tax:
Net loss	$ (1,275)	$ (1,305)
Reclassification of pension expense to net loss		406
Pension settlement	31,776
Increase in minimum pension liability	(555)	(16,422)
Other comprehensive income (loss)	31,221	(16,016)
Total comprehensive income (loss)	$ 29,946	$ (17,321)