Revenue Recognition (Detail Textuals) (USD $)	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013
Deferred Revenue Arrangement [Line Items]
Average dealer discount associated with new volume	8.43%	8.57%
Minimum term of suspension on finance receivables	60 days
Amount of gross finance receivables not accruing interest	$ 7,075,000		$ 4,132,000
Nicholas Data Services, Inc.
Deferred Revenue Arrangement [Line Items]
Percentage of revenues	1.00%