Segment Information (Tables)

12 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

Results of Operations

Results of Operations

(In thousands)

	Electrical Infrastructure			Oil Gas & Chemical			Storage Solutions			Industrial			Unallocated Corporate		Total
Fiscal Year ended June 30, 2019
Gross revenues	$	217,417		$	322,065		$	524,330		$	357,464		$	—	$	1,421,276
Less: inter-segment revenues	—			2,198			2,398			—			—		4,596
Consolidated revenues	217,417			319,867			521,932			357,464			—		1,416,680
Gross profit	15,470			35,987			56,011			24,483			—		131,951
Operating income	3,668			12,984			14,097			7,181			—		37,930
Segment assets	155,880			91,959			188,912			90,336			106,307		633,394
Capital expenditures	2,493			2,736			4,644			3,464			6,221		19,558
Depreciation and amortization expense	2,460			4,661			6,666			4,437			—		18,224
Fiscal Year ended June 30, 2018
Gross revenues	$	255,931		$	324,546		$	319,106		$	198,155		$	—	$	1,097,738
Less: inter-segment revenues	—			1,774			4,410			1			—		6,185
Consolidated revenues	255,931			322,772			314,696			198,154			—		1,091,553
Gross profit	18,300			33,423			25,778			14,435			—		91,936
Operating income (loss)	(16,531		)	8,798			(5,907		)	3,161			—		(10,479		)
Segment assets	161,207			111,064			149,695			58,816			77,251		558,033
Capital expenditures	493			1,514			3,346			—			3,358		8,711
Depreciation and amortization expense	4,359			5,904			6,623			3,461			—		20,347
Fiscal Year ended June 30, 2017
Gross revenues	$	373,384		$	247,423		$	483,254		$	103,449		$	—	$	1,207,510
Less: inter-segment revenues	—			6,900			1,558			1,543			—		10,001
Consolidated revenues	373,384			240,523			481,696			101,906			—		1,197,509
Gross profit	7,137			12,675			55,651			5,540			—		81,003
Operating income (loss)	(8,309		)	(8,783		)	22,928			(977		)	—		4,859
Segment assets	183,351			129,177			166,742			53,754			53,006		586,030
Capital expenditures	1,390			829			2,017			38			7,634		11,908
Depreciation and amortization expense	5,198			6,299			7,277			2,828			—		21,602

Summary of revenues and long lived assets according to geographic areas

Geographical information is as follows:

	Long-Lived Assets
	June 30, 2019		June 30, 2018		June 30, 2017
	(In thousands)
United States	$	193,472	$	174,241	$	193,164
Canada	10,110		13,738		21,419
Other international	12,502		13,008		12,817
	$	216,084	$	200,987	$	227,400

Schedule of Revenue by Major Customers by Reporting Segments

	Significant Customers as a Percentage of Segment Revenues
	Consolidated		Electrical Infrastructure		Oil Gas & Chemical		Storage Solutions		Industrial
Fiscal Year ended June 30, 2019
Customer one	9.7	%	—	%	—	%	—	%	38.4	%
Customer two	7.6	%	49.0	%	—	%	—	%	0.4	%
Customer three	7.6	%	—	%	—	%	—	%	30.1	%
Customer four	7.2	%	—	%	30.9	%	0.6	%	—	%
Customer five	7.1	%	—	%	—	%	19.4	%	—	%
Customer six	5.0	%	—	%	—	%	13.6	%	—	%
Customer seven	4.6	%	0.3	%	3.1	%	10.6	%	—	%
Customer eight	3.4	%	22.4	%	—	%	—	%	—	%
Customer nine	3.1	%	—	%	—	%	—	%	12.3	%
Customer ten	3.0	%	—	%	—	%	—	%	12.0	%
Customer eleven	2.1	%	13.4	%	—	%	—	%	—	%
Fiscal Year ended June 30, 2018
Customer one	11.4	%	—	%	—	%	—	%	62.9	%
Customer two	8.6	%	—	%	29.0	%	—	%	—	%
Customer three	6.4	%	26.5	%	—	%	0.6	%	—	%
Customer four	6.0	%	25.4	%	—	%	—	%	—	%
Customer five	4.2	%	—	%	12.0	%	2.2	%	—	%
Customer six	3.2	%	—	%	10.8	%	—	%	—	%
Customer seven	3.2	%	—	%	—	%	10.9	%	—	%
Customer eight	3.0	%	12.9	%	—	%	—	%	—	%
Customer nine	2.7	%	—	%	—	%	—	%	14.7	%
Customer ten	2.3	%	10.0	%	—	%	—	%	—	%
Fiscal Year ended June 30, 2017
Customer one	19.5	%	—	%	—	%	48.5	%	—	%
Customer two	15.3	%	46.0	%	—	%	2.4	%	—	%
Customer three	5.2	%	—	%	25.8	%	—	%	—	%
Customer four	4.2	%	—	%	20.7	%	—	%	—	%
Customer five	4.0	%	12.7	%	—	%	—	%	—	%
Customer six	2.7	%	—	%	—	%	—	%	31.7	%
Customer seven	2.2	%	—	%	—	%	—	%	25.8	%