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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

Goodwill and intangible assets consisted of the following at December 31: 

		2017												2016
(in thousands)		Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount				Gross Carrying Amount				Accumulated Amortization				Net Carrying Amount
Goodwill
T&D		$	40,224			$	—			$	40,224			$	40,224			$	—			$	40,224
C&I			6,770				—				6,770				6,557				—				6,557
Total goodwill		$	46,994			$	—			$	46,994			$	46,781			$	—			$	46,781
Amortizable Intangible Assets
Backlog		$	989			$	989			$	—			$	989			$	989			$	—
Customer relationships			5,277				4,069				1,208				5,266				3,590				1,676
Trade names			695				125				570				695				79				616
Unallocated intangible assets			—				—				—				744				26				718
Indefinite-lived Intangible Assets
Trade names			9,074				—				9,074				8,556				—				8,556
Total Intangible assets		$	16,035			$	5,183			$	10,852			$	16,250			$	4,684			$	11,566

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

As of December 31, 2017 estimated future intangible asset amortization expense for the each of the next five years and thereafter was as follows:

(In thousands)		Future Amortization Expense
2018		$	443
2019			137
2020			137
2021			137
2022			137
Thereafter			787
Total		$	1,778

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- References

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- Definition

Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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- Definition

Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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