Short-Term and Long-Term Obligations - Subsequent Event (Details) (CTBC Bank [Member])			3 Months Ended			0 Months Ended
	Oct. 30, 2011 USD ($)	Oct. 30, 2011 TWD	Sep. 30, 2013 Building Term Loan [Member]	Nov. 05, 2013 Subsequent Event [Member] USD ($)	Nov. 05, 2013 Subsequent Event [Member] TWD	Nov. 05, 2013 Subsequent Event [Member] Revolving Credit Facility [Member] USD ($)	Nov. 05, 2013 Subsequent Event [Member] Revolving Credit Facility [Member] TWD	Nov. 05, 2013 Subsequent Event [Member] Building Term Loan [Member] USD ($)	Nov. 05, 2013 Subsequent Event [Member] Building Term Loan [Member] TWD	Nov. 05, 2013 Subsequent Event [Member] Unsecured Term Loan [Member] USD ($)	Nov. 05, 2013 Subsequent Event [Member] Unsecured Term Loan [Member] TWD
Subsequent Event [Line Items]
Credit facility, term						13 months	13 months	13 months	13 months	13 months	13 months
Credit facility, basis spread on variable rate			0.30%			0.30%	0.30%	0.25%	0.25%	0.25%	0.25%
Maximum line of credit facility, percent of eligible accounts receivable for borrowings						80.00%	80.00%
Credit facility, maximum borrowing capacity	$ 9,898,000	300,000,000		$ 33,981,000	1,000,000,000	$ 16,991,000	500,000,000	$ 23,787,000	700,000,000	$ 3,398,000	100,000,000
Credit facility, unused amount				$ 18,690,000	550,000,000