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Income Taxes (Details Textual)	3 Months Ended
Income Taxes (Details Textual)	Jun. 30, 2012	Jun. 30, 2011
Income Taxes (Textual) [Abstract]
Effective tax rate	2.80%	20.30%

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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