Inventory Finance Receivables and Allowance for Loan Loss (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Direct Inventory Finance [Member] | Inventory finance notes receivable [Member]
Allowance for loan losses and inventory finance receivables by class individually and collectively evaluated for impairment
Collectively evaluated for impairment	$ 12,674	$ 13,916
Individually evaluated for impairment	4,784	4,451
Total	17,458	18,367
Direct Inventory Finance [Member] | Allowance for loan loss [Member]
Allowance for loan losses and inventory finance receivables by class individually and collectively evaluated for impairment
Collectively evaluated for impairment	196	215
Individually evaluated for impairment
Total	196	215
Participation Inventory Finance [Member] | Inventory finance notes receivable [Member]
Allowance for loan losses and inventory finance receivables by class individually and collectively evaluated for impairment
Collectively evaluated for impairment
Individually evaluated for impairment	7,420	6,529
Total	7,420	6,529
Participation Inventory Finance [Member] | Allowance for loan loss [Member]
Allowance for loan losses and inventory finance receivables by class individually and collectively evaluated for impairment
Collectively evaluated for impairment
Individually evaluated for impairment
Total