CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		9 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 24, 2016	Sep. 26, 2015
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net sales	$ 74,790,098	$ 64,818,118	$ 237,111,672	$ 210,708,719
Cost of sales	57,553,194	52,175,728	182,301,806	171,153,245
Gross profit	17,236,904	12,642,390	54,809,866	39,555,474
Selling, general and administrative expenses	9,509,950	8,693,633	28,882,781	26,394,787
Other income	(206,976)	(110,133)	(264,392)	(408,648)
Operating income	7,933,930	4,058,890	26,191,477	13,569,335
Interest (income) expense	92,097	(72,004)	238,225	199,658
Income before income taxes	7,841,833	4,130,894	25,953,252	13,369,677
Income tax expense	2,844,510	1,334,000	8,900,404	4,293,000
Net income	4,997,323	2,796,894	17,052,848	9,076,677
Other comprehensive income (loss), net of tax	33,313	(72,481)	100,181	(102,881)
Comprehensive income	$ 5,030,636	$ 2,724,413	$ 17,153,029	$ 8,973,796
Income per share:
Basic (in dollars per share)	$ 0.29	$ 0.17	$ 1.01	$ 0.54
Diluted (in dollars per share)	$ 0.29	$ 0.16	$ 0.99	$ 0.53
Shares used in the computation of income per share:
Basic (in shares)	16,998,110	16,764,923	16,933,093	16,663,607
Diluted (in shares)	17,233,784	17,062,801	17,207,476	16,984,060