CONSOLIDATED BALANCE SHEETS (USD $)	Sep. 30, 2011	Dec. 31, 2010
CURRENT ASSETS
Cash and cash equivalents	$ 21,738,571	$ 13,072,503
Trade accounts receivable	17,517,930	17,166,709
Cost and estimated earnings in excess of billings on uncompleted contracts	1,994,444	4,578,580
Prepaid expenses and other	1,825,973	1,600,450
Prepaid federal income tax		1,219,165
Total current assets	43,076,918	37,637,407
PROPERTY AND EQUIPMENT - at cost
Machinery and equipment	132,074,219	115,252,066
Automobiles and trucks	11,961,659	10,868,295
Furniture and fixtures	422,003	418,643
Leasehold improvements	14,994	14,994
Total property and equipment, gross	144,472,875	126,553,998
Less accumulated depreciation and amortization	(89,598,611)	(76,838,372)
Total property and equipment, net	54,874,264	49,715,626
Goodwill	201,530	201,530
Other assets	72,965	60,834
Total noncurrent assets	274,495	262,364
Total assets	98,225,677	87,615,397
CURRENT LIABILITIES
Trade accounts payable	5,941,099	9,261,238
Accrued liabilities	3,783,820	1,808,149
Billings in excess of costs and estimated earnings on uncompleted contracts	5,789,887	5,486,017
Federal and state income taxes payable	1,264,827
Current maturities of notes payable	6,967,920	6,316,852
Current portion of capital lease obligations	1,227,519	1,071,263
Total current liabilities	24,975,072	23,943,519
NOTES PAYABLE, less current maturities	6,509,288	4,718,492
CAPITAL LEASE OBLIGATIONS, less current portion	1,547,919	1,302,963
LONG-TERM DEFERRED TAX LIABILITY	5,798,657	4,787,623
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' EQUITY
Preferred stock, $1.00 par value; 4,000,000 shares authorized; issued - none
Common stock, $.01 par value; 25,000,000 shares authorized; 19,295,962 and 19,242,251 in each period	192,960	192,423
Additional paid-in capital	27,845,180	27,512,709
Retained earnings	32,063,413	24,666,326
Treasury stock, at cost, 37,803 shares	(257,323)	(257,323)
Accumulated other comprehensive income (loss)	(449,489)	748,665
Total shareholders' equity	59,394,741	52,862,800
Total liabilities and shareholders' equity	$ 98,225,677	$ 87,615,397