CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 8,854,765	$ 8,306,895	$ 7,683,732
Adjustments to reconcile net income to net cash provided
Depreciation and amortization	5,897,100	5,659,005	5,638,775
Deferred income taxes	62,948	584,512	339,200
Deferred compensation and pension		416,572	(147,655)
(Gain) loss on disposal of fixed assets	(50,949)	53,124	72,545
Stock compensation expense	122,500	122,500	129,900
Write-off of deferred financing costs due to prepayment			1,503,007
Change in assets and liabilities:
Receivables	824,438	2,549,431	(1,196,709)
Inventories	(2,177,197)	(6,166,492)	(3,432,089)
Income tax receivable		(1,164,664)
Other current assets	1,598,879	(768,089)	(484,714)
Other assets	146,766	712,419	744,409
Accounts payable	3,769,551	(2,922,410)	1,834,607
Accrued and other liabilities	(1,055,248)	(853,245)	1,370,193
Net cash provided by operating activities	17,993,553	6,529,558	14,055,201
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed assets	(6,145,390)	(7,559,846)	(4,743,453)
Proceeds from sales of fixed assets	118,398	62,295	28,560
Investment in trademarks and patents	(55,613)	(46,098)	(25,693)
Net cash used in investing activities	(6,082,605)	(7,543,649)	(4,740,586)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from revolving credit facility	63,140,815	76,376,444	231,819,597
Repayments of revolving credit facility	(74,679,475)	(74,474,277)	(211,803,555)
Repayments of long-term debt		(1,997,985)	(40,511,871)
Debt financing costs			(577,445)
Issuance of common stock, net of issuance costs			14,105,600
Proceeds from exercise of stock options		371,427	190,620
Tax benefit related to stock options		26,242	27,877
Net cash (used in) provided by financing activities	(11,538,660)	301,851	(6,749,177)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	372,288	(712,240)	2,565,438
CASH AND CASH EQUIVALENTS:
BEGINNING OF PERIOD	3,650,291	4,362,531	1,797,093
END OF PERIOD	$ 4,022,579	$ 3,650,291	$ 4,362,531