CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2013	Dec. 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 21,335,800	$ 8,614,244
Trade accounts receivable	11,753,875	35,640,758
Cost and estimated earnings in excess of billings on uncompleted contracts	3,217,677	6,263,943
Prepaid expenses and other	3,500,615	1,824,779
Total current assets	39,807,967	52,343,724
PROPERTY AND EQUIPMENT - at cost
Machinery and equipment	188,243,780	190,943,331
Automobiles and trucks	14,350,921	15,265,627
Furniture and fixtures	488,950	488,779
Leasehold improvements	14,994	14,994
Total property and equipment, gross	203,098,645	206,712,731
Less accumulated depreciation and amortization	(133,623,122)	(117,326,964)
Total property and equipment, net	69,475,523	89,385,767
Goodwill	201,530	201,530
Other assets	93,153	96,817
Total noncurrent assets	294,683	298,347
Total assets	109,578,173	142,027,838
CURRENT LIABILITIES
Trade accounts payable	4,238,363	13,680,538
Accrued liabilities	3,283,991	5,544,071
Billings in excess of costs and estimated earnings on uncompleted contracts	986,765	3,757,349
Federal and state income taxes payable		4,569,891
Current maturities of notes payable	10,056,672	10,615,279
Current portion of capital lease obligations	1,559,841	1,960,503
Total current liabilities	20,125,632	40,127,631
NOTES PAYABLE, less current maturities	8,100,940	14,412,598
CAPITAL LEASE OBLIGATIONS, less current portion	1,026,886	1,884,937
LONG-TERM DEFERRED TAX LIABILITY	4,824,591	7,617,111
SHAREHOLDERS' EQUITY
Preferred stock, $1.00 par value; 4,000,000 shares authorized; issued - none
Common stock, $.01 par value; 35,000,000 and 25,000,000 shares authorized; 22,055,795 and 20,732,500 issued and outstanding in each period	220,550	207,325
Additional paid-in capital	31,257,630	29,573,986
Retained earnings	46,469,312	48,073,556
Treasury stock, at cost, 135,197 and 80,076 shares in each period	(1,175,875)	(691,009)
Accumulated other comprehensive income (loss) - foreign currency translations adjustments	(1,271,493)	821,703
Total shareholders' equity	75,500,124	77,985,561
Total liabilities and shareholders' equity	$ 109,578,173	$ 142,027,838