Condensed Consolidated Statements Of Income (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 32,947	$ 33,860	$ 101,440	$ 103,657
Cost of sales	23,249	26,132	74,571	79,513
Gross profit	9,698	7,728	26,869	24,144
Selling and administrative	6,270	6,648	17,958	20,786
Amortization	118	118	341	378
Gain on sale of operating equipment	0	(608)	0	(608)
Income from operations	3,310	1,570	8,570	3,588
Other income (expense), net	103	(68)	436	(121)
Interest expense (including related party interest of $59 and $58, and $177 and $171, respectively)	(296)	(341)	(870)	(942)
Income from continuing operations before income taxes	3,117	1,161	8,136	2,525
Income tax expense	798	488	2,606	1,008
Income from continuing operations	2,319	673	5,530	1,517
Income (loss) from discontinued operations, net of tax (Note 16)	0	10	0	(155)
Net income	$ 2,319	$ 683	$ 5,530	$ 1,362
Per share data:
Basic income from continuing operations	$ 0.16	$ 0.05	$ 0.39	$ 0.11
Basic income (loss) from discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ (0.01)
Basic net income	$ 0.16	$ 0.05	$ 0.39	$ 0.10
Diluted income from continuing operations	$ 0.14	$ 0.05	$ 0.34	$ 0.10
Diluted income (loss) from discontinued operations	$ 0.00	$ 0.00	$ 0.00	$ (0.01)
Diluted net income	$ 0.14	$ 0.05	$ 0.34	$ 0.09
Weighted average number of common shares outstanding:
Basic	14,371,752	14,320,188	14,340,119	14,304,554
Diluted	17,157,305	17,128,215	17,130,767	14,396,965