Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Statement [Abstract]
NET SALES	$ 19,914	$ 11,401	$ 46,830	$ 31,475
Cost of sales	16,068	9,026	36,127	24,703
GROSS MARGIN	3,846	2,375	10,703	6,772
Technical services and research and development	90	74	273	206
Selling, general and administrative expenses	1,242	1,098	3,825	3,322
Gain on disposal of assets	(6)		(6)
OPERATING INCOME	2,520	1,203	6,611	3,244
OTHER EXPENSE:
Interest expense	(143)	(139)	(397)	(336)
Gain (loss) on foreign currency exchange rate	(24)	63	(21)	6
Other, net			1	7
INCOME BEFORE INCOME TAX	2,353	1,127	6,194	2,921
Income tax expense	516	60	1,402	198
NET INCOME	1,837	1,067	4,792	2,723
Less: Preferred Stock Dividends				15
Basic Income Available to Common Shareholders	1,837	1,067	4,792	2,708
Plus: 6% Convertible Debenture Interest Expense		22	36	66
Plus: Preferred Stock Dividends				15
Diluted Income Available to Common Shareholders	$ 1,837	$ 1,089	$ 4,828	$ 2,789
Income per common share:
Basic (in dollars per share)	$ 0.62	$ 0.50	$ 1.77	$ 1.32
Diluted (in dollars per share)	$ 0.53	$ 0.33	$ 1.43	$ 0.86
Weighted average common shares outstanding:
Basic (in shares)	2,968	2,122	2,714	2,052
Diluted (in shares)	3,441	3,264	3,383	3,234