CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 24, 2016	Dec. 26, 2015
Current assets:
Cash and cash equivalents	$ 23,030,435	$ 17,247,891
Investments	3,043,422	2,898,763
Accounts receivable, net	30,176,591	25,006,551
Inventories	27,477,939	24,992,743
Other current assets	5,810,167	4,787,586
Total current assets	89,538,554	74,933,534
Property, plant and equipment, net	46,230,761	46,186,364
Other assets	381,125	609,815
Total assets	136,150,440	121,729,713
Current liabilities:
Current maturities of long-term debt	666,668	666,668
Trade accounts payable	8,248,370	7,950,620
Other accrued liabilities	12,994,031	14,718,523
Total current liabilities	21,909,069	23,335,811
Long-term debt	7,166,664	7,666,665
Deferred income taxes	2,524,364	2,097,041
Other long-term liabilities	43,636	41,767
Total liabilities	31,643,733	33,141,284
Stockholders' equity	104,506,707	88,588,429
Total liabilities and stockholders' equity	$ 136,150,440	$ 121,729,713