Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 128	$ 8,684
Restricted cash	958
Accounts receivable:
Trade, net of allowance of $2,600 and $4,280, respectively	116,540	77,641
Retainage	42,547	30,734
Other current	2,680	4,257
Income taxes receivable	962	467
Inventory	1,114	1,056
Costs and estimated earnings in excess of billings on uncompleted contracts	41,389	9,217
Prepaid expenses and other	5,647	5,000
Total current assets	211,965	137,056
Property and equipment, net of depreciation	132,348	148,003
Operating lease right-of-use assets, net of amortization	17,997
Financing lease right-of-use assets, net of amortization	7,896
Inventory, non-current	7,037	7,598
Goodwill		0
Intangible assets, net of amortization	12,147	14,787
Deferred income tax asset	85
Other non-current	5,369	5,426
Total assets	394,844	312,870
Current liabilities:
Current debt, net of debt issuance costs	3,668	2,946
Accounts payable:
Trade	70,421	42,023
Retainage	562	736
Accrued liabilities	16,966	18,840
Income taxes payable	1,523	0
Billings in excess of costs and estimated earnings on uncompleted contracts	48,781	21,761
Current portion of operating lease liabilities	5,043
Current portion of financing lease liabilities	2,788
Total current liabilities	149,752	86,306
Long-term debt, net of debt issuance costs	68,029	76,119
Operating lease liabilities	13,596
Financing lease liabilities	3,760
Other long-term liabilities	20,436	8,759
Deferred income tax liability	205	49
Interest rate swap liability	1,045	52
Total liabilities	256,823	171,285
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, 30,303,395 and 29,611,989 issued; 29,592,164 and 28,900,758 outstanding at December 31, 2019 and December 31, 2018, respectively	303	296
Treasury stock, 711,231 shares, at cost, as of December 31, 2019 and December 31, 2018, respectively	(6,540)	(6,540)
Other comprehensive loss	(1,045)	(52)
Additional paid-in capital	182,523	179,742
Retained earnings	(37,220)	(31,861)
Total stockholders' equity	138,021	141,585
Total liabilities and stockholders’ equity	$ 394,844	$ 312,870