CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income	$ 10,783,616	$ 9,407,517	$ 5,981,984
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,781,002	3,152,193	2,895,062
Gain on sales of property, plant, and equipment	(838,592)	(12,000)	(11,206)
Gain on acquisitions			(839,690)
Share-based compensation	1,088,672	963,710	900,813
Stock issued in lieu of compensation	55,000	79,248	183,500
Deferred income taxes	451,702	305,830	226,950
Excess tax benefits on share-based compensation	(699,659)	(854,015)	(23,421)
Changes in operating assets and liabilities, net of effects from acquisition:
Receivables, net	(985,342)	(415,370)	(341,536)
Inventories, net	(1,714,287)	(396,819)	1,863,118
Prepaid expenses	476,426	(558,920)	72,715
Refundable income taxes	327,394	(1,414,026)
Accounts payable	507,018	160,922	384,928
Accrued expenses	(439,559)	1,380,570	(307,305)
Retirement and other liabilities	(12,398)	234,332	204,553
Other assets	(65,492)	(205,445)	(509,425)
Net cash provided by operating activities	11,715,501	11,827,727	10,681,040
Cash flows from investing activities:
Additions to property, plant, and equipment	(3,740,891)	(3,285,530)	(1,856,837)
Acquisition of Foamade Industries, Inc.'s assets			(375,000)
Acquisition of E.N. Murray Co. net of cash acquired			(1,440,534)
Acquisition of Advanced Materials Group assets			(620,000)
Proceeds from sale of property, plant, and equipment	1,222,494	12,000	13,364
Net cash used in investing activities	(2,518,397)	(3,273,530)	(4,279,007)
Cash flows from financing activities:
Distribution to United Development Company Partners (noncontrolling interest)	(289,183)	(105,000)	(105,000)
Excess tax benefits on share-based compensation	699,659	854,015	23,421
Proceeds from the exercise of stock options net of attestations	250,538	507,056	130,332
Principal repayment of long-term debt	(1,281,959)	(623,552)	(576,690)
Principal repayment of obligations under capital leases			(1,612,665)
Payment of statutory withholding for stock options exercised and restricted stock units vested	(829,995)	(485,511)
Proceeds from long-term borrowings			4,000,000
Net cash (used in) provided by financing activities	(1,450,940)	147,008	1,859,398
Net change in cash and cash equivalents	7,746,164	8,701,205	8,261,431
Cash and cash equivalents at beginning of year	22,102,634	13,401,429	5,139,998
Cash and cash equivalents at end of year	$ 29,848,798	$ 22,102,634	$ 13,401,429

Amount of the excess of the fair value of acquired net assets over the cost of an acquired business after pro rata reduction of the amounts that otherwise would have been assigned to acquired assets except financial assets other than investments accounted for by the equity method, assets to be disposed of by sale, deferred tax assets, prepaid assets relating to pension and postretirement benefit plans, and other current assets. This element is net of the related tax effect.

No definition available.