Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement
Contract revenues	$ 182,621	$ 139,907	$ 552,127	$ 439,091
Costs of contract revenues	169,189	133,329	511,548	404,757
Gross profit	13,432	6,578	40,579	34,334
Selling, general and administrative expenses	15,380	15,733	48,783	44,078
Amortization of intangible assets	309	380	929	1,141
Gain on disposal of assets, net	(3,388)	(792)	(4,561)	(9,763)
Operating income (loss)	1,131	(8,743)	(4,572)	(1,122)
Other (expense) income:
Other income	48	50	147	159
Interest income	36	22	71	73
Interest expense	(1,215)	(523)	(2,913)	(4,506)
Other expense, net	(1,131)	(451)	(2,695)	(4,274)
Income (loss) income before income taxes		(9,194)	(7,267)	(5,396)
Income tax (benefit) expense	(247)	1,001	396	341
Net income (loss)	$ 247	$ (10,195)	$ (7,663)	$ (5,737)
Basic income (loss) per share (in dollars per share)	$ 0.01	$ (0.33)	$ (0.25)	$ (0.19)
Diluted income (loss) per share (in dollars per share)	$ 0.01	$ (0.33)	$ (0.25)	$ (0.19)
Shares used to compute income (loss) per share:
Basic (in shares)	31,613,519	30,979,207	31,180,417	30,707,426
Diluted (in shares)	31,613,519	30,979,207	31,180,417	30,707,426