Short-term and Long-term Obligations - Debt (Details) - USD ($)	1 Months Ended
	Jul. 31, 2016	Jun. 30, 2016	Jun. 30, 2015
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		$ 93,589,000	$ 94,412,000
Current portion		(53,589,000)	(93,479,000)
Long-term portion		40,000,000	933,000
Revolving Credit Facility | CTBC Bank | CTBC 2016 Facility
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		10,100,000
Revolving Credit Facility | CTBC Bank | CTBC 2015 Facility
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings			9,700,000
Line of Credit | Revolving Credit Facility
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		72,299,000	69,399,000
Line of Credit | Revolving Credit Facility | Bank of America | Bank of America 2015 Credit Agreement
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		62,199,000	59,699,000
Term Loan
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		21,290,000	25,013,000
Term Loan | Bank of America | Bank of America 2015 Credit Agreement
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		933,000	3,733,000
Term Loan | CTBC Bank | CTBC 2016 Facility
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings		$ 20,357,000
Term Loan | CTBC Bank | CTBC 2015 Facility
Line of Credit Facility [Line Items]
Total debt, outstanding borrowings			$ 21,280,000
Subsequent Event | Term Loan | Secured Debt | Bank of America | Bank of America 2016 Credit Agreement
Line of Credit Facility [Line Items]
Credit facility, term	5 years
Term loan, face amount	$ 50,000,000