Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 2,732	$ 128
Restricted cash	0	958
Accounts receivable:
Trade, net of allowance for credit losses of $411 and $2,600, respectively	90,612	116,540
Retainage	36,230	42,547
Income taxes receivable	962	962
Other current	25,931	2,680
Inventory	1,936	1,114
Costs and estimated earnings in excess of billings on uncompleted contracts	43,196	41,389
Prepaid expenses and other	4,593	5,647
Total current assets	206,192	211,965
Property and equipment, net of depreciation	125,911	132,348
Operating lease right-of-use assets, net of amortization	15,619	17,997
Financing lease right-of-use assets, net of amortization	12,775	7,896
Inventory, non-current	6,506	7,037
Intangible assets, net of amortization	10,595	12,147
Deferred income tax asset	67	85
Other non-current	4,855	5,369
Total assets	382,520	394,844
Current liabilities:
Current debt, net of debt issuance costs	4,347	3,668
Accounts payable:
Trade	47,810	70,421
Retainage	590	562
Accrued liabilities	45,925	16,966
Income taxes payable	486	1,523
Billings in excess of costs and estimated earnings on uncompleted contracts	40,967	48,781
Current portion of operating lease liabilities	4,766	5,043
Current portion of financing lease liabilities	4,543	2,788
Total current liabilities	149,434	149,752
Long-term debt, net of debt issuance costs	36,285	68,029
Operating lease liabilities	11,545	13,596
Financing lease liabilities	7,670	3,760
Other long-term liabilities	20,053	20,436
Deferred income tax liability	214	205
Interest rate swap liability	1,795	1,045
Total liabilities	226,996	256,823
Stockholders? equity:
Preferred stock -- $0.01 par value, 10,000,000 authorized, none issued
Common stock -- $0.01 par value, 50,000,000 authorized, 31,126,326 and 30,303,395 issued; 30,415,095 and 29,592,164 outstanding at September 30, 2020 and December 31, 2019, respectively	311	303
Treasury stock, 711,231 shares, at cost, as of September 30, 2020 and December 31, 2019, respectively	(6,540)	(6,540)
Accumulated other comprehensive loss	(1,795)	(1,045)
Additional paid-in capital	184,214	182,523
Retained loss	(20,666)	(37,220)
Total stockholders' equity	155,524	138,021
Total liabilities and stockholders' equity	$ 382,520	$ 394,844