Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,759	$ 8,684
Accounts receivable:
Trade, net of allowance of $4,280 and $4,280, respectively	99,292	77,641
Retainage	36,889	30,734
Other current	2,134	4,257
Income taxes receivable	865	467
Inventory	907	1,056
Costs and estimated earnings in excess of billings on uncompleted contracts	23,641	9,217
Prepaid expenses and other	4,947	5,000
Total current assets	171,434	137,056
Property and equipment, net of depreciation	135,045	148,003
Operating lease right-of-use assets, net of amortization	21,510	0
Financing lease right-of-use assets, net of amortization	8,238	0
Inventory, non-current	7,495	7,598
Goodwill	0	0
Intangible assets, net of amortization	13,467	14,787
Other non-current	5,600	5,426
Total assets	362,789	312,870
Current liabilities:
Current debt, net of debt issuance costs	2,939	2,946
Accounts payable:
Trade	48,175	42,023
Retainage	845	736
Accrued liabilities	13,902	18,840
Income taxes payable	409	0
Billings in excess of costs and estimated earnings on uncompleted contracts	51,964	21,761
Current portion of operating lease liabilities	5,677	0
Current portion of financing lease liabilities	2,935	0
Total current liabilities	126,846	86,306
Long-term debt, net of debt issuance costs	78,386	76,119
Operating lease liabilities	16,485	0
Financing lease liabilities	4,291	0
Other long-term liabilities	2,846	8,759
Deferred income taxes	92	49
Interest rate swap liability	1,094	52
Total liabilities	230,040	171,285
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, 30,215,084 and 29,611,989 issued; 29,503,853 and 28,900,758 outstanding at June 30, 2019 and December 31, 2018, respectively	302	296
Treasury stock, 711,231 shares, at cost, as of June 30, 2019 and December 31, 2018, respectively	(6,540)	(6,540)
Other comprehensive loss	(1,094)	(52)
Additional paid-in capital	181,499	179,742
Retained loss	(41,418)	(31,861)
Total stockholders’ equity	132,749	141,585
Total liabilities and stockholders’ equity	$ 362,789	$ 312,870