CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 30, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 28,208	$ 59,056
Investments	2,885,883	2,887,172
Accounts receivable, net	22,997,856	18,781,735
Inventories	40,072,090	32,308,931
Deferred income taxes	1,748,837	2,298,181
Other current assets	4,014,990	4,672,211
Total current assets	71,747,864	61,007,286
Property, plant and equipment, at cost	93,282,968	92,795,659
Less, Accumulated depreciation and amortization	49,532,492	49,857,671
Property, plant and equipment, net	43,750,476	42,937,988
Other assets	1,127,242	1,142,809
Total assets	116,625,582	105,088,083
Current liabilities:
Current maturities of long-term debt	4,248	16,934
Trade accounts payable	20,433,011	11,936,544
Other accrued liabilities	9,568,087	10,409,930
Total current liabilities	30,005,346	22,363,408
Long-term debt	14,797,725	14,089,063
Deferred income taxes	2,238,595	1,472,730
Total liabilities	47,041,666	37,925,201
Stockholders' equity	69,583,916	67,162,882
Total liabilities and stockholders' equity	$ 116,625,582	$ 105,088,083