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Detail of Selected Balance Sheet Accounts (Activity In Allowance For Doubtful Accounts) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Balance at beginning of year	$ 1,399	$ 391
Increase in (decrease to) bad debt expense	(544)	842	(114)
Deductions for uncollectible accounts written off, net of recoveries	(142)	142
Increase (decrease) due to foreign currency translation	(10)	24
Balance at end of year	$ 703	$ 1,399	$ 391

Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

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