Note 5 - Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

Finite-lived intangible assets (in thousands)		(In years)		December 31, 2021							December 31, 2020
Telecommunications	Estimated Useful Life (in years)	Weighted average remaining amortization period		Gross Carrying Amount		Accumulated Amortization			Identifiable Intangible Assets, less Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization			Identifiable Intangible Assets, less Accumulated Amortization
Customer Relationships-GTS	10		9.29	$	16,075	$	(1,152	)	$	14,923	$	—	$	—		$	—
Customer Relationships-IMMCO	10		9.58		3,800		(158	)		3,642		—		—			—
Customer Relationships - Full Moon	10		9.82		210		(4	)		206		—		—			—
Technology - Know How	4		3.58		1,459		(152	)		1,307		—		—			—
Software-IMMCO	3		2.57		547		(93	)		454		—		—			—
Non-compete agreements-GTS	5		4.29		385		(55	)		330		—		—			—
Total Telecommunications					22,476		(1,614	)		20,862		—		—			—
Electric Power
Order backlog	1		0.88		9,186		(1,148	)		8,038		—		—			—
Customer relationships - Front Line	15		14.89		84,012		(700	)		83,312		—		—			—
Total Electric Power					93,198		(1,848	)		91,350		—		—			—
Renewables
Customer Relationships	5		3.25		8,647		(3,027	)		5,620		8,647		(1,297	)		7,350
Trade name - Reach Construction Group	1		—		1,878		(1,878	)		-		1,878		(1,409	)		469
Non-compete agreements	5		3.25		3,212		(1,124	)		2,088		3,212		(482	)		2,730
Total Renewables					13,737		(6,029	)		7,708		13,737		(3,188	)		10,549
Other category
Computer software	3		0.08		713		(713	)		—		713		(709	)		4
Product certifications	3		—		36		(36	)		—		36		(36	)		—
Total Other category					749		(749	)		—		749		(745	)		4
Total identifiable finite-lived other intangible assets				$	130,160	$	(10,240	)	$	119,920	$	14,486	$	(3,933	)	$	10,553
Identifiable indefinite-lived other intangible assets
Electric Power
Trade name - Front line					15,027		—			15,027		—		—			—
Telecommunications
Trade name - GTS					6,388		—			6,388		—		—			—
Trade name - IMMCO					1,162		—			1,162		—		—			—
Trade name - Full Moon					159		—			159		—		—			—
Total Telecommunications					7,709		—			7,709		—		—			—
Total identifiable indefinite-lived other intangible assets					22,736		—			22,736		—		—			—
Total identifiable other intangible assets					152,896		(10,240	)		142,656		14,486		(3,933	)		10,553

Schedule of Finite-Lived Intangible Assets, Amortization Expense [Table Text Block]

	For the Years Ended December 31,
(In thousands)	2021		2020
Trademarks and trade name	$	469	$	1,409
Customer lists/relationships		3,744		1,297
Technology-Know How		152		—
Computer software		96		18
Noncompete agreements		697		482
Order Backlog		1,148		—
Intangibles held by discontinued operations		1,396		1,215
Total amortization	$	7,702	$	4,421

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	For the Years Ended December 31,
											2027 and
(In thousands)	2022		2023		2024		2025		2026		thereafter		Totals
Trademarks and trade name	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Customer lists/relationships		9,339		9,339		9,339		8,042		7,609		64,035		107,703
Technology-Know How		365		365		365		212		—		—		1,307
Computer software		222		222		10		—		—		—		454
Order Backlog		8,038		—		—		—		—		—		8,038
Non-compete agreements		719		719		719		238		23		—		2,418
Total amortization	$	18,683	$	10,645	$	10,433	$	8,492	$	7,632	$	64,035	$	119,920

Schedule of Goodwill [Table Text Block]

(In thousands)	Telecommunications		Electric Power		Renewables		Other		Total
Balance, December 31, 2020	$	—	$	—	$	7,006	$	—	$	7,006
Acquisition of Gibson Technical Services		12,339		—		—		—		12,339
Acquisition of IMMCO Inc.		10,577		—		—		—		10,577
Acquisition of Full Moon Telecom, LLC		826		—		—		—		826
Acquisition of Front Line Power Construction, LLC		—		70,151		—		—		70,151
Balance, December 31, 2021	$	23,742	$	70,151	$	7,006	$	—	$	100,899