Goodwill and Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized intangible assets:
Gross carrying amount	$ 10,610	$ 10,610
Accumulated amortization	(4,461)	(3,663)
Net intangible assets, excluding goodwill	6,149	6,947
Unamortized intangible assets:
Gross carrying amount	9,960	9,960
Net intangible assets, excluding goodwill	9,960	9,960
Gross carrying amount	20,570	20,570
Accumulated amortization	(4,461)	(3,663)
Total amortized and unamortized assets, excluding goodwill	16,109	16,907
Trade name – Jake Marshall
Unamortized intangible assets:
Gross carrying amount	9,960	9,960
Net intangible assets, excluding goodwill	9,960	9,960
Customer Relationships | GCR | Jake Marshall Transaction
Amortized intangible assets:
Gross carrying amount	570	570
Accumulated amortization	(47)	(6)
Net intangible assets, excluding goodwill	523	564
Unamortized intangible assets:
Accumulated amortization	(47)	(6)
Customer Relationships | ODR
Amortized intangible assets:
Gross carrying amount	4,710	4,710
Accumulated amortization	(3,634)	(3,475)
Net intangible assets, excluding goodwill	1,076	1,235
Unamortized intangible assets:
Accumulated amortization	(3,634)	(3,475)
Customer Relationships | ODR | Jake Marshall Transaction
Amortized intangible assets:
Gross carrying amount	3,050	3,050
Accumulated amortization	(235)	(35)
Net intangible assets, excluding goodwill	2,815	3,015
Unamortized intangible assets:
Accumulated amortization	(235)	(35)
Favorable Leasehold Interests
Amortized intangible assets:
Gross carrying amount	190	190
Accumulated amortization	(90)	(82)
Net intangible assets, excluding goodwill	100	108
Unamortized intangible assets:
Accumulated amortization	(90)	(82)
Backlog – Construction | GCR | Jake Marshall Transaction
Amortized intangible assets:
Gross carrying amount	260	260
Accumulated amortization	(96)	(14)
Net intangible assets, excluding goodwill	164	246
Unamortized intangible assets:
Accumulated amortization	(96)	(14)
Backlog – Construction | ODR | Jake Marshall Transaction
Amortized intangible assets:
Gross carrying amount	680	680
Accumulated amortization	(250)	(36)
Net intangible assets, excluding goodwill	430	644
Unamortized intangible assets:
Accumulated amortization	(250)	(36)
Trade name – Jake Marshall | Jake Marshall Transaction
Amortized intangible assets:
Gross carrying amount	1,150	1,150
Accumulated amortization	(109)	(15)
Net intangible assets, excluding goodwill	1,041	1,135
Unamortized intangible assets:
Accumulated amortization	$ (109)	$ (15)