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Receivables (Schedule of Receivables Based on Year of Origination) (Details) (USD $) | Apr. 30, 2011
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Emerald Advance Lines of Credit [Member] | Year of Origination 2011 [Member] |
Receivables, Net | $ 28,800,000
Emerald Advance Lines of Credit [Member] | Year of Origination 2010 [Member] |
Receivables, Net | 5,236,000
Tax Client Receivables - RALs [Member] | Year of Origination 2010 [Member] |
Receivables, Net | 446,000
Emerald Advance Lines of Credit [Member] | Year of Origination 2009 [Member] |
Receivables, Net | 4,443,000
Tax Client Receivables - RALs [Member] | Year of Origination 2009 [Member] |
Receivables, Net | 2,270,000
Emerald Advance Lines of Credit [Member] | Year of Origination 2008 and Prior [Member] |
Receivables, Net | 2,722,000
Tax Client Receivables - RALs [Member] | Year of Origination 2008 and Prior [Member] |
Receivables, Net | 5,551,000
Emerald Advance Lines of Credit [Member] | Revolving Loans [Member] |
Receivables, Net | 12,063,000
Emerald Advance Lines of Credit [Member] |
Receivables, Net | 53,264,000
Non accrual status loans | 46,800,000
Tax Client Receivables - RALs [Member] |
Receivables, Net | $ 8,267,000

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- Definition Reflects the sum of the gross carrying amounts of the various categories of unpaid commercial loans and leases receivable, primarily issued to businesses. Includes: (1) commercial and industrial loans, consisting of general purpose loans to entities involved in producing, transporting, or merchandising products sold in the course of commerce; (2) agricultural loans consisting of borrowings used to finance major equipment and machinery purchases and expenses, livestock or crop production (including fisheries), and to supplement working capital needs of an entity engaged in farming operations; (3) mortgage loans secured by a [legal] security interest in real property [commercial building or business real property]; (4) obligation in the form of [promissory] notes, used for the funding of construction projects; (5) interbank and other loans to financial institutions for the purpose of liquidity management on the part of the borrower; (6) draws against credit facilities provided to companies involved in mortgage banking activities (warehousing); (7) amounts lent to businesses engaged in international activities (trade financing); (8) lease financings; and (9) loans to governmental entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a),(b)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 03 -Paragraph 7 -Subparagraph a, b Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableCommercial
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Reflects the carrying amount of loans deemed to be questionable as to collection on which no interest is continuing to be recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph g -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableImpairedNonperformingNonaccrualOfInterest
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant