Concentration of Risk and Enterprise-Wide Disclosures (Tables)

12 Months Ended

Dec. 31, 2022

Trade and contract retainage receivables

Concentration Risk [Line Items]

Schedules of concentration of risk, by risk factor

	December 31, 2022				December 31, 2021
Federal Government	$	4,612	3	%	$	6,563	5	%
State Governments		3,111	2	%		61	-	%
Local Governments		16,197	10	%		11,923	9	%
Private Companies		134,317	85	%		111,328	86	%
Gross receivables		158,237	100	%		129,875	100	%
Allowance for credit losses		(606)				(323)
Net receivables	$	157,631			$	129,552

Contract revenues

Concentration Risk [Line Items]

Schedules of concentration of risk, by risk factor

	2022		%		2021		%		2020		%
Federal Government	$	80,116	11	%	$	54,480	9	%	$	51,793	7	%
State Governments		62,516	8	%		4,790	1	%		27,574	4	%
Local Government		125,015	17	%		120,311	20	%		202,839	29	%
Private Companies		480,675	64	%		421,779	70	%		427,736	60	%
Total contract revenues	$	748,322	100	%	$	601,360	100	%	$	709,942	100	%