Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2015
Significant Accounting Policies [Line Items]
Accounts receivable factored	$ 20,500,000	$ 17,800,000
Inventory reserve amount	17,700,000	22,300,000
Total carrying value of equity method investment	11,400,000	11,900,000
Pro-rata share of earnings from equity method investment	29,000	948,000	$ 698,000
Loss contingency liability	$ 0
Maximum percentage of total revenues represented by distributors and agents that are not granted price protection	10.00%
Maximum percentage of contract related revenues	2.00%
Accumulated foreign currency translation adjustments, net of income taxes	$ (6,200,000)	9,500,000
Accumulated pension adjustments, net of income taxes	(7,800,000)	(800,000)
Reclassification of deferred tax assets		13,260,000
Reclassification of deferred tax liability	$ 11,103,000	7,105,000
Adopted Pronouncements
Significant Accounting Policies [Line Items]
Reclassification of deferred tax assets				$ 13,300,000
Reclassification of deferred tax liability				$ 1,000,000
Guangdong Fuxin Electronic Technology
Significant Accounting Policies [Line Items]
Non-controlling minority interest	20.20%
Pro-rata share of earnings from equity method investment		900,000	700,000
Dividends from equity investment	$ 600,000	$ 600,000	$ 300,000
Minimum
Significant Accounting Policies [Line Items]
Finite-lived intangible assets useful life, years	5 years
Maximum
Significant Accounting Policies [Line Items]
Finite-lived intangible assets useful life, years	20 years
Maximum | Guangdong Fuxin Electronic Technology
Significant Accounting Policies [Line Items]
Pro-rata share of earnings from equity method investment	$ 100,000
Building improvements and land improvements | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment estimated useful lives, years	10 years
Building improvements and land improvements | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment estimated useful lives, years	20 years
Machinery and equipment | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment estimated useful lives, years	3 years
Machinery and equipment | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment estimated useful lives, years	20 years