Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill by segment are as follows:



	Electrical Infrastructure			Oil Gas & Chemical		Storage Solutions			Industrial			Total
	(In thousands)
Net balance at June 30, 2015	$	42,374		$	14,008	$	9,664		$	5,472		$	71,518
Purchase of BTE (Note 2)	—			—		6,942			—			6,942
Translation adjustment ⁽¹⁾	(204		)	—		75			(38		)	(167		)
Net balance at June 30, 2016	42,170			14,008		16,681			5,434			78,293
Purchase of Houston Interests (Note 2)	—			19,596		—			15,550			35,146
Acquisition related adjustments	—			—		88			—			88
Translation adjustment ⁽¹⁾	(18		)	—		(5		)	(3		)	(26		)
Net balance at June 30, 2017	42,152			33,604		16,764			20,981			113,501
Goodwill impairment	(17,281		)	—		—			—			(17,281		)
Translation adjustment⁽¹⁾	(45		)	—		(4		)	(9		)	(58		)
Net balance at June 30, 2018	$	24,826		$	33,604	$	16,760		$	20,972		$	96,162

Carrying value of other intangible assets

Information on the carrying value of other intangible assets is as follows:



		At June 30, 2018
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Years)	(In thousands)
Intellectual property	9 to 15	$	2,579	$	(1,603	)	$	976
Customer based	6 to 15	38,562		(16,763		)	21,799
Non-compete Agreements	4	1,453		(1,414		)	39
Trade names	—	1,630		(1,630		)	—
Total other intangible assets		$	44,224	$	(21,410	)	$	22,814



		At June 30, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Years)	(In thousands)
Intellectual property	9 to 15	$	2,579	$	(1,425	)	$	1,154
Customer based	1 to 15	38,207		(13,543		)	24,664
Non-compete agreements	4 to 5	1,453		(1,298		)	155
Trade name	1 to 3	1,630		(1,307		)	323
Total other intangible assets		$	43,869	$	(17,573	)	$	26,296

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

Amortization expense totaled $4.8 million, $4.9 million, and $3.6 million in fiscal 2018, 2017, and 2016, respectively. We estimate that future amortization of other intangible assets will be as follows (in thousands):



For year ending:
June 30, 2019	$	3,699
June 30, 2020	3,688
June 30, 2021	3,669
June 30, 2022	2,821
June 30, 2023	2,369
Thereafter	6,568
Total estimated amortization expense	$	22,814