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 |