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Income Tax Benefit (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Income Tax Benefit (Textual) [Abstract]
Statutory tax rate	35.00%
Valuation allowances	$ 49,152	$ 18,300

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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- Definition

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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