Consolidated Statements of Earnings (USD $) In Thousands, except 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]
Revenues	$ 19,226	$ 17,927	$ 61,362	$ 50,065
Cost of goods sold	15,008	14,110	47,791	38,376
Gross profit	4,218	3,817	13,571	11,689
Operating expenses
Selling, general and administrative	3,216	2,895	9,767	7,991
Foreign exchange (gain) loss	(160)	48	(245)	35
Total operating expenses	3,056	2,943	9,522	8,026
Operating income	1,162	874	4,049	3,663
Interest and bank charges	270	207	699	428
Other expense (income)	39	328	69	769
Earnings from continuing operations before income taxes	853	339	3,281	2,466
Provision for income taxes	640	56	1,337	583
Earnings from continuing operations	213	283	1,944	1,883
Earnings (loss) from discontinued operations, net of income taxes		(2,029)	(161)	(2,440)
Net earnings	$ 213	$ (1,746)	$ 1,783	$ (557)
Earnings from continuing operations per share:
Basic	$ 0.04	$ 0.05	$ 0.33	$ 0.32
Diluted	$ 0.04	$ 0.05	$ 0.33	$ 0.32
Earnings per common share:
Basic	$ 0.04	$ (0.30)	$ 0.30	$ (0.09)
Diluted	$ 0.04	$ (0.29)	$ 0.30	$ (0.09)
Weighted average common shares outstanding:
Basic	5,907	5,907	5,907	5,907
Denominator for diluted earnings per common share	5,915	5,982	5,910	5,973