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Subsequent Event - Future Amortization Expense (Detail) (USD $) | Sep. 30, 2013
--- | ---
Subsequent Event [Line Items] |
2014 | $ 48,475
2015 | 48,475
2016 | 48,475
2017 | 48,475
2018 | 3,518
Total | 197,418
Subsequent Event [Member] |
Subsequent Event [Line Items] |
Total | 345,980
Subsequent Event [Member] | Notes [Member] |
Subsequent Event [Line Items] |
2014 | 79,287
2015 | 86,495
2016 | 86,495
2017 | 86,495
2018 | 7,208
Total | $ 345,980

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- Definition Debt issuance cost amortization expense in next twelve months. + References No definition available. + Details
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Namespace Prefix: | hnna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Debt issuance cost amortization expense year five. + References No definition available. + Details
Name: | hnna_DebtIssuanceCostAmortizationExpenseYearFive
Namespace Prefix: | hnna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Debt issuance cost amortization expense year four. + References No definition available. + Details
Name: | hnna_DebtIssuanceCostAmortizationExpenseYearFour
Namespace Prefix: | hnna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt issuance cost amortization expense year three. + References No definition available. + Details
Name: | hnna_DebtIssuanceCostAmortizationExpenseYearThree
Namespace Prefix: | hnna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt issuance cost amortization expense year two. + References No definition available. + Details
Name: | hnna_DebtIssuanceCostAmortizationExpenseYearTwo
Namespace Prefix: | hnna_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + 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 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant