Short-term and Long-term Obligations - Bank of America (Details)	1 Months Ended	12 Months Ended
	Jun. 30, 2015 USD ($) building	Jun. 30, 2016 USD ($) building	Jul. 31, 2016 USD ($)
Debt Instrument [Line Items]
Total debt, outstanding borrowings	$ 94,412,000	$ 93,589,000
Bank of America | Line of Credit | Revolving Credit Facility | LIBOR
Debt Instrument [Line Items]
Credit facility, basis spread on variable rate (as a percent)		1.25%
LIBOR rate (as a percent)		0.46%
Bank of America | Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Interest rate, stated percentage		1.25%
Bank of America 2015 Credit Agreement | Bank of America | Minimum
Debt Instrument [Line Items]
Interest rate (as a percent)	0.79%	1.02%
Bank of America 2015 Credit Agreement | Bank of America | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)	1.68%	1.96%
Bank of America 2015 Credit Agreement | Bank of America | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 65,000,000
Line of credit, outstanding borrowings	$ 59,699,000
Bank of America 2015 Credit Agreement | Bank of America | Term Loan | Secured Debt
Debt Instrument [Line Items]
Credit facility, term	5 years
Term loan, face amount	$ 14,000,000
Number of buildings as collateral | building	3
Debt, outstanding borrowings	$ 3,733,000	$ 933,000
Bank of America 2015 Credit Agreement | Bank of America | Term Loan | Secured Debt | LIBOR
Debt Instrument [Line Items]
Credit facility, basis spread on variable rate (as a percent)	1.50%
Bank of America 2016 Credit Agreement | Bank of America | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		55,000,000
Credit facility, remaining borrowing capacity		2,801,000
Bank of America 2016 Credit Agreement | Bank of America | Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 5,000,000
Bank of America 2016 Credit Agreement | Bank of America | Term Loan | Secured Debt
Debt Instrument [Line Items]
Credit facility, term		5 years
Term loan, face amount		$ 50,000,000
Number of buildings as collateral | building		7
Unused borrowing capacity		$ 50,000,000
Bank of America 2016 Credit Agreement | Bank of America | Term Loan | Secured Debt | LIBOR
Debt Instrument [Line Items]
Credit facility, basis spread on variable rate (as a percent)		1.25%
Subsequent Event | Bank of America 2016 Credit Agreement | Bank of America | Term Loan | Secured Debt
Debt Instrument [Line Items]
Term loan, face amount			$ 50,000,000
Interest rate (as a percent)			1.71%
Super Micro Computer, Taiwan | Bank of America 2016 Credit Agreement | Bank of America | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity		$ 10,000,000
Credit facility, basis spread on variable rate (as a percent)	0.90%
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Total debt, outstanding borrowings	$ 69,399,000	72,299,000
Line of Credit | Bank of America 2015 Credit Agreement | Bank of America | Revolving Credit Facility
Debt Instrument [Line Items]
Debt, outstanding borrowings		62,199,000
Total debt, outstanding borrowings	$ 59,699,000	$ 62,199,000