Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 6,281	$ 9,086
Accounts receivable:
Trade, net of allowance of $0 and $0, respectively	77,015	84,953
Retainage	37,909	39,189
Other current	3,942	3,706
Income taxes receivable	248	339
Inventory	3,878	4,386
Costs and estimated earnings in excess of billings on uncompleted contracts	53,287	46,006
Prepaid expenses and other	4,677	4,124
Total current assets	187,237	191,789
Property and equipment, net	147,683	146,278
Inventory, non-current	4,835	4,915
Goodwill	69,483	69,483
Intangible assets, net of amortization	16,481	18,175
Other non-current	6,550	2,645
Total assets	432,269	433,285
Current liabilities:
Current debt, net of debt issuance costs	30,743	22,756
Accounts payable:
Trade	37,500	45,194
Retainage	2,826	1,990
Accrued liabilities	18,218	17,873
Taxes payable	705	256
Billings in excess of costs and estimated earnings on uncompleted contracts	25,069	33,923
Total current liabilities	115,061	121,992
Long-term debt, net of debt issuance costs	57,094	63,185
Other long-term liabilities	4,904	3,573
Deferred income taxes	15,084	13,243
Interest rate swap liability	0	26
Total liabilities	192,143	202,019
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, 29,422,432 and 28,860,961 issued; 28,711,208 and 28,149,737 outstanding at June 30, 2018 and December 31, 2017, respectively	293	288
Treasury stock, 711,231 shares, at cost, as of June 30, 2018 and December 31, 2017, respectively	(6,540)	(6,540)
Other comprehensive income (loss)	320	(26)
Additional paid-in capital	177,142	174,697
Retained earnings	68,911	62,847
Total stockholders’ equity	240,126	231,266
Total liabilities and stockholders’ equity	$ 432,269	$ 433,285