Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 31,933	$ 38,979
Accounts receivable:
Trade, net of allowance of $0	32,520	20,954
Retainage	8,440	5,977
Other	880	1,111
Income taxes receivable	17,221	13,998
Note receivable	46	51
Inventory	3,791	3,361
Deferred tax asset	980	1,182
Costs and estimated earnings in excess of billings on uncompleted contracts	9,391	15,112
Prepaid expenses and other	2,457	2,470
Total current assets	107,659	103,195
Property and equipment, net	153,946	146,107
Accounts receivable, long-term	1,410	1,410
Goodwill	32,168	32,168
Other assets	232	207
Total assets	295,415	283,087
Current liabilities:
Current debt	13,000	0
Accounts payable:
Trade	15,372	11,977
Retainage	1,208	374
Accrued liabilities	8,774	9,339
Billings in excess of costs and estimated earnings on uncompleted contracts	14,547	5,665
Total current liabilities	52,901	27,355
Other long-term liabilities	703	606
Deferred income taxes	18,219	21,287
Deferred revenue	174	203
Total liabilities	71,997	49,451
Commitments and contingencies
Stockholders’ Equity:
Preferred stock -- $0.01 par value, 10,000,000 authorized, none issued	0	0
Common stock - $0.01 par value, 50,000,000 authorized, 27,439,149 and 27,436,922 issued; 27,121,417 and 27,119,191 outstanding at June 30, 2012 and December 31, 2011, respectively	274	274
Treasury stock, 317,731 shares, at cost	(3,003)	(3,003)
Additional paid-in capital	159,099	157,560
Retained earnings	67,048	78,805
Total stockholders' equity	223,418	233,636
Total liabilities and stockholders’ equity	$ 295,415	$ 283,087