Inventory Finance Receivables and Allowance for Loan Loss (Details 3) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Mar. 31, 2012
Direct Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	$ 19,997	$ 18,367
Participation Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	7,454	6,529
Performing [Member] | Direct Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	19,949	17,972
Performing [Member] | Participation Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	7,454	6,529
Watch list [Member] | Direct Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	48	395
Watch list [Member] | Participation Inventory Finance [Member]
Risk profile based on payment activity
Inventory finance notes receivable, net	$ 0	$ 0