Operating Segments - Condensed Consolidated Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Revenue	$ 116,120	$ 121,019	$ 230,942	$ 234,363
Total gross profit	21,320	18,690	39,660	35,919
Selling, general and administrative	18,690	17,232	37,424	34,377
Change in fair value of contingent consideration	765	0	765	0
Amortization of intangibles	399	104	798	208
Operating income	1,466	1,354	673	1,334
Interest expense, net	(478)	(452)	(964)	(1,716)
Gain on disposition of property and equipment	147	94	111	8
Loss on early termination of operating lease	(32)	0	(849)	0
Loss on early debt extinguishment	0	0	0	(1,961)
Gain on change in fair value of warrant liability	0	0	0	14
Total unallocated amounts	(363)	(358)	(1,702)	(3,655)
Income (loss) before income taxes	1,103	996	(1,029)	(2,321)
Depreciation and amortization	2,086	1,469	4,148	2,964
Operating Segments | GCR
Segment Reporting Information [Line Items]
Revenue	66,336	87,550	138,268	172,354
Total gross profit	8,694	8,885	17,052	18,280
Selling, general and administrative	7,980	9,070	16,545	18,184
Depreciation and amortization	1,075	1,020	2,183	2,056
Operating Segments | ODR
Segment Reporting Information [Line Items]
Revenue	49,784	33,469	92,674	62,009
Total gross profit	12,626	9,805	22,608	17,639
Selling, general and administrative	10,135	7,526	19,705	14,880
Depreciation and amortization	612	345	1,167	700
Corporate
Segment Reporting Information [Line Items]
Selling, general and administrative	575	636	1,174	1,313
Depreciation and amortization	$ 399	$ 104	$ 798	$ 208