Note 3 Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2018

Financial Instruments, Owned, at Fair Value [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

	As of
	March 31, 2018		September 30, 2017
Derivatives Designated as Accounting Hedges:
Notional amount (in thousands)	$	102,102	$	105,523
Number of contracts	55		58
Derivatives Not Designated as Accounting Hedges:
Notional amount (in thousands)	$	291,469	$	302,944
Number of contracts	44		46