Schedule - Rule 12-09 Valuation and Qualifying Accounts and Reserves (Details) - Rule 12-09 Valuation and Qualifying Accounts and Reserves (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2011
Allowance for Doubtful Accounts [Member]
Valuation Allowance [Line Items]
Balance at beginning of period	$ 223		$ 110		$ 178
Charged to costs and expenses	24	[1]	190	[2]	26	[1]
Charged to other accounts describe	31	[3]
Balance at end of period	177		223		110
Deductions describe	101	[2]	77	[2]	94	[4]
Inventory Valuation Reserve [Member]
Valuation Allowance [Line Items]
Balance at beginning of period	353	[5]	659		879
Charged to costs and expenses	482	[5]	247	[5]	454	[5]
Balance at end of period	831		353	[5]	659
Deductions describe	4	[6]	553	[6]	674	[6]
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Balance at beginning of period	22,137		24,573		22,053
Charged to other accounts describe	5,330	[7],[8]			2,520	[10],[7],[9]
Balance at end of period	26,634	[11],[12],[9]	22,137		24,573
Deductions describe	$ 833		$ 2,436	[11],[12],[9]

[1] Reserving of doubtful receivable.

[2] Write-off of uncollectible receivable.

[3] Reserve reclassification.

[4] Recovery of receivables previously listed as doubtful.

[5] Increase reserve for slow-moving product.

[6] Write off of slow moving inventory.

[7] Increase NOL due to losses incurred in Mexico.

[8] Increase in NOL due to losses incurred in U.S.

[9] Includes a reduction in required valuation allowance due to domestic net operating loss ("NOL") utilization.

[10] Reduction in required valuation due to non-qualified stock options deduction for which no cash benefit has been realized.

[11] Includes a reduction in required valuation allowance due to foreign NOL utilization

[12] Includes increase in effective tax rate in Hungary.