Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Sep. 30, 2012
Assets, Current [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 313	$ 266
Value added tax receivable allowance	$ 755	$ 722
Stockholders' Equity Attributable to Parent [Abstract]
Common Stock, Par or Stated Value Per Share (in usd per share)	$ 0.01	$ 0.01
Common Stock, Shares Authorized	75,000,000	75,000,000
Common Stock, Shares, Issued	37,245,384	36,296,027
Common Stock, Shares, Outstanding	28,885,304	28,183,549
Treasury Stock, Shares	8,360,080	8,112,478
Series A Preferred Stock [Member]
Stockholders' Equity Attributable to Parent [Abstract]
Preferred Stock, Par or Stated Value Per Share (in usd per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	1,800,000	1,800,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Series B Preferred Stock [Member]
Stockholders' Equity Attributable to Parent [Abstract]
Preferred Stock, Par or Stated Value Per Share (in usd per share)	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	200,000	200,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0