CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	3 Months Ended		9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 27, 2014	Sep. 28, 2013
Consolidated Statements of Comprehensive Income
Net sales	$ 58,023,699	$ 56,656,038	$ 182,969,324	$ 181,936,497
Cost of sales	46,736,407	45,041,492	149,153,869	144,696,014
Gross profit	11,287,292	11,614,546	33,815,455	37,240,483
Selling, general and administrative expenses	7,783,492	7,733,558	23,604,955	23,665,263
Other income	(299,148)	(88,908)	(398,343)	(812,603)
Operating income	3,802,948	3,969,896	10,608,843	14,387,823
Interest expense	101,983	289,048	255,429	426,613
Income from continuing operations before income taxes	3,700,965	3,680,848	10,353,414	13,961,210
Income tax expense	1,232,000	1,189,395	3,405,000	4,885,480
Income from continuing operations	2,468,965	2,491,453	6,948,414	9,075,730
Discontinued operations
Gain on sale of discontinued operations, net of tax			87,036
Operating loss from discontinued operations, net of tax		(960,016)	(1,654,459)	(4,315,356)
Loss from discontinued operations, net of tax		(960,016)	(1,567,423)	(4,315,356)
Net income	2,468,965	1,531,437	5,380,991	4,760,374
Other comprehensive income (loss), net of tax	(4,309)	(31,265)	16,733	(62,534)
Comprehensive income	$ 2,464,656	$ 1,500,172	$ 5,397,724	$ 4,697,840
Basic income (loss) per share:
Income from continuing operations (in dollars per share)	$ 0.15	$ 0.15	$ 0.42	$ 0.56
Loss from discontinued operations (in dollars per share)		$ (0.06)	$ (0.09)	$ (0.26)
Net income (loss) (in dollars per share)	$ 0.15	$ 0.09	$ 0.33	$ 0.30
Diluted income (loss) per share:
Income from continuing operations (in dollars per share)	$ 0.15	$ 0.15	$ 0.41	$ 0.55
Loss from discontinued operations (in dollars per share)		$ (0.06)	$ (0.09)	$ (0.26)
Net income (loss) (in dollars per share)	$ 0.15	$ 0.09	$ 0.32	$ 0.29
Shares used in the computation of income (loss) per share:
Basic (in shares)	16,385,403	16,160,518	16,311,598	16,087,864
Diluted (in shares)	16,762,994	16,546,113	16,714,412	16,425,542