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Income Taxes (Details) (USD $)	3 Months Ended		6 Months Ended			123 Months Ended
Income Taxes (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2001	Sep. 30, 2011	Jun. 30, 2012
Income Taxes (Textual) [Abstract]
Unrecognized tax benefits including interest and penalties							$ 43,300,000
Federal statutory income tax rate	35.00%	35.00%	35.00%	35.00%
Income tax (benefit) expense	(360,000)	581,000	(160,000)	391,000	391,000	581,000
Tax benefit recognized			$ 600,000
Period for considering change in estimated liability for uncertain tax provisions			12 months

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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