Condensed Consolidated Statements of Operations-Unaudited (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Condensed Consolidated Statements of Operations [Abstract]
REVENUES	$ 6,965	$ 7,582	$ 14,363	$ 14,756
Cost and expenses:
Manufacturing cost of sales	5,177	5,575	10,173	11,152
Engineering, selling and administrative	2,606	2,297	5,286	4,695
OPERATING LOSS	(818)	(290)	(1,096)	(1,091)
Other Expense:
Interest expense, net	(10)	(28)	(29)	(54)
Other expense, net	(1)	(8)	0	(40)
Total Other Expense	(11)	(36)	(29)	(94)
LOSS BEFORE INCOME TAXES	(829)	(326)	(1,125)	(1,185)
Income tax (provision) benefit	(4,135)	111	(3,922)	377
NET LOSS	$ (4,964)	$ (215)	$ (5,047)	$ (808)
Weighted average number of shares used in basic and diluted net income (loss) per common share calculation (in shares)	2,602,329	2,599,866	2,600,248	2,597,554
BASIC AND DILUTED NET INCOME (LOSS) PER COMMON SHARE (in dollars per share)	$ (1.91)	$ (0.08)	$ (1.94)	$ (0.31)