Quarterly Data (Unaudited) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
NET SALES	$ 9,889	$ 11,317	$ 12,392	$ 13,132	$ 12,992	$ 10,870	$ 10,732	$ 11,427	$ 46,730	$ 46,021
Cost of sales	8,437	9,809	10,885	10,980	14,324	9,289	9,020	9,933	40,111	42,566
GROSS MARGIN	1,452	1,508	1,507	2,152	(1,332)	1,581	1,712	1,494	6,619	3,455
Technical services and research and development	49	50	54	46	193	135	171	153	199	652
Selling, general and administrative expenses	1,490	1,092	1,114	1,113	1,078	1,119	1,247	1,278	4,809	4,722
Loss on disposal of assets	2,140							10	(2,140)	(10)
OPERATING INCOME (LOSS)	(2,227)	366	339	993	(2,603)	327	294	53	(529)	(1,929)
OTHER INCOME (EXPENSE):
Interest expense	(79)	(85)	(95)	(95)	(103)	(103)	(99)	(84)	354	389
Gain (loss) on foreign currency exchange rate	104	71	(57)	(4)	11	(84)	20	(87)	114	(140)
Other, net	18	5		5		6		12	28	18
Total Other Expense	43	(9)	(152)	(94)	(92)	(181)	(79)	(159)	(212)	(511)
INCOME (LOSS) BEFORE INCOME TAX	(2,184)	357	187	899	(2,695)	146	215	(106)	(741)	(2,440)
Income tax (benefit) expense	(474)	61	34	192	(891)	33	65	(31)	(187)	(824)
Net loss	$ (1,710)	$ 296	$ 153	$ 707	$ (1,804)	$ 113	$ 150	$ (75)	$ (554)	$ (1,616)
Income (Loss) per common share:
Basic (in dollars per share)	$ (0.57)	$ 0.1	$ 0.05	$ 0.23	$ (0.60)	$ 0.04	$ 0.05	$ (0.03)	$ (0.18)	$ (0.54)
Diluted (in dollars per share)	$ (0.57)	$ 0.09	$ 0.04	$ 0.21	$ (0.60)	$ 0.03	$ 0.04	$ (0.03)	$ (0.18)	$ (0.54)
Weighted average common shares outstanding:
Basic (in dollars per share)	3,014	3,014	3,014	3,014	3,012	3,012	2,998	2,987	3,014	3,002
Diluted (in dollars per share)	3,014	3,394	3,402	3,413	3,012	3,422	3,404	2,987	3,014	3,002