Basis of Presentation - Summary of change to consolidated balance sheet (Details) (USD $)	Jun. 30, 2013	Mar. 31, 2013	Jun. 30, 2012
Consolidated Balance Sheet
Finance receivables, net	$ 255,257,992	$ 249,825,801	$ 243,556,904
Deferred income taxes	7,568,768	8,426,961	9,376,997
Retained earnings	101,173,669	96,933,548	111,036,247
Reported
Consolidated Balance Sheet
Finance receivables, net			244,597,019
Deferred income taxes			8,978,840
Retained earnings			111,678,205
Correction
Consolidated Balance Sheet
Finance receivables, net			(1,040,115)
Deferred income taxes			399,157
Retained earnings			$ (641,958)

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b),(c)

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Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.3)

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 31

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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