CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenues	$ 47,779	$ 63,150	$ 155,046	$ 185,022
Cost of revenues	35,213	46,863	115,354	136,057
Gross profit	12,566	16,287	39,692	48,965
Selling, general and administrative expenses:
Operating expenses	12,615	12,930	38,937	38,753
Employment-related claim, net of recoveries	0	0	3,100	0
Total selling, general and administrative expenses	12,615	12,930	42,037	38,753
Income (loss) from operations	(49)	3,357	(2,345)	10,212
Interest income (expense), net	148	(85)	232	(326)
Other income (expense), net	55	85	(32)	334
Income (loss) before income taxes	154	3,357	(2,145)	10,220
Income tax expense (benefit)	29	951	(358)	3,046
Net income (loss)	$ 125	$ 2,406	$ (1,787)	$ 7,174
Earnings (loss) per share:
Basic	$ 0.01	$ 0.21	$ (0.15)	$ 0.62
Diluted	$ 0.01	$ 0.20	$ (0.15)	$ 0.59
Weighted average common shares outstanding:
Basic	11,597	11,616	11,618	11,578
Diluted	11,968	12,084	11,618	12,082