CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 3,459,896	$ 106,833
Investments	935,651	924,016
Accounts receivable, net	21,987,163	22,040,297
Inventories	38,504,178	38,134,862
Deferred income taxes	1,454,661
Other current assets	4,311,626	8,303,579
Total current assets	70,653,175	69,509,587
Property, plant and equipment, at cost	86,480,686	81,778,886
Less, Accumulated depreciation and amortization	49,780,482	48,248,829
Property, plant and equipment, net	36,700,204	33,530,057
Other assets	1,353,291	1,683,718
Total assets	108,706,670	104,723,362
Current liabilities:
Current maturities of long-term debt	129,926	246,192
Trade accounts payable	15,560,205	21,424,434
Accrued income taxes	1,108,537	719,611
Other accrued liabilities	12,418,902	11,697,311
Total current liabilities	29,217,570	34,087,548
Long-term debt	12,160,911	15,702,467
Deferred income taxes	637,527
Total liabilities	42,016,008	49,790,015
Stockholders' equity	66,690,662	54,933,347
Total liabilities and stockholders' equity	$ 108,706,670	$ 104,723,362