Income Taxes (Details) (USD $)	3 Months Ended							12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Income Tax Disclosure [Abstract]
Valuation allowance	$ 515,000				$ 499,000			$ 515,000	$ 499,000
Discrete tax benefit	200,000	100,000	400,000	100,000	300,000	1,100,000	100,000	800,000	1,500,000	700,000
Percentage points that reduced effective tax rate								(9.2)	(14.1)	(4.4)
Income tax penalties and interest accrued	600,000				600,000			600,000	600,000
Accumulated undistributed foreign earnings	24,400,000							24,400,000
Foreign Tax Authority
Income Taxes [Line Items]
Tax credit carryforward	200,000							200,000
Minimum
Income Taxes [Line Items]
Estimated unrecognized deferred tax liability	1,500,000							1,500,000
Maximum
Income Taxes [Line Items]
Estimated unrecognized deferred tax liability	$ 2,500,000							$ 2,500,000