Note 8. Derivative Instruments - Textuals (Details)	3 Months Ended			12 Months Ended		3 Months Ended
	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 Foreign Exchange Contract USD ($)	Jun. 30, 2013 Foreign Exchange Contract	Sep. 30, 2013 Foreign Exchange Contract EUR (€)	Sep. 30, 2013 Non-Operating Income (Expense) Foreign Exchange Contract USD ($)	Sep. 30, 2012 Non-Operating Income (Expense) Foreign Exchange Contract USD ($)	Sep. 30, 2013 Non-Operating Income (Expense) Stock Warrant USD ($)	Sep. 30, 2012 Non-Operating Income (Expense) Stock Warrant USD ($)
Derivatives, Fair Value
Derivative, Notional Amount			$ 26,300,000		€ 43,900,000
Derivatives, Gain (Loss) Deferred in Accumulated OCI, Estimated Net Amount to be Transferred to Income, pre-tax			(1,100,000)
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer			12 months	12 months
Derivatives Not Designated as Hedging Instruments, Pre-Tax Gain (Loss) Recognized in Income	$ (540,000)	$ (197,000)				$ (544,000)	$ (196,000)	$ 4,000	$ (1,000)