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Cash Equivalents (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012
Cash Equivalents (Textual) [Abstract] |
Cash equivalent maximum maturity period | 3 months
Legislation expiration date | Dec. 31, 2012
Increased Insured limit of FDIC | $ 250,000
Increase in Cash account over the insured limit | 4,800,000
Cash balances at the Federal Reserve Bank and Federal Home Loan Bank of Indianapolis | $ 741,000

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- Definition Cash amount exceed over FDIC insured limit. + References No definition available. + Details
Name: | hbnc_CashAmountExceedOverFdicInsuredLimit
Namespace Prefix: | hbnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Cash equivalent maximum maturity period. + References No definition available. + Details
Name: | hbnc_CashEquivalentMaximumMaturityPeriod
Namespace Prefix: | hbnc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Legislation expiration date. + References No definition available. + Details
Name: | hbnc_LegislationExpirationDate
Namespace Prefix: | hbnc_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
Name: | us-gaap_CashFDICInsuredAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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- Definition Amount of Federal Home Loan Bank (FHLB) and Federal Reserve Bank stock. + References No definition available. + Details
Name: | us-gaap_FederalHomeLoanBankStockAndFederalReserveBankStock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant