Significant Accounting Policies 2 (Details)	12 Months Ended
	Mar. 31, 2013
Building and Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	5 years
Building and Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	40 years
Remaining Property and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	3 years
Remaining Property and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated useful life	7 years