Note 4 - Revenue From Contracts With Customers (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	For the Three Months
	Ended March 31,
(in thousands)	2023			2022
Total contract liabilities - beginning of period	$	10,218		$	6,503
Other contract additions, net		1,701			6,905
Change in provision for loss		(3,567	)		—
Revenue recognized		(5,652	)		(6,938	)
Total contract liabilities - end of period	$	2,700		$	6,470

Disaggregation of Revenue [Table Text Block]

	For the Three Months								For the Three Months
	Ended March 31, 2023								Ended March 31, 2022
(in thousands)	Electric Power		Telecommunications		Renewables		Total		Electric Power		Telecommunications		Renewables		Total
Utilities	$	36,808	$	214	$	—	$	37,022	$	39,251	$	—	$	—	$	39,251
Telecommunications		133		26,745		—		26,878		—		16,095		—		16,095
Renewables		—		—		14,929		14,929		—		—		14,464		14,464
Other		1,357		—		—		1,357		444		—		—		444
Total revenues	$	38,298	$	26,959	$	14,929	$	80,186	$	39,695		16,095	$	14,464	$	70,254

	For the Three Months								For the Three Months
	Ended March 31, 2023								Ended March 31, 2022
(in thousands)	Electric Power		Telecommunications		Renewables		Total		Electric Power		Telecommunications		Renewables		Total
Cost-plus contracts	$	15,268	$	—	$	—	$	15,268	$	17,237	$	112	$	—	$	17,349
Fixed price contracts		6,187		1,291		14,929		22,407		7,742		2,319		14,464		24,525
Unit price contracts		16,843		25,668		—		42,511		14,716		13,664		—		28,380
Total revenues	$	38,298	$	26,959	$	14,929	$	80,186	$	39,695	$	16,095	$	14,464	$	70,254