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Summary of Significant Accounting Policies (Details) (USD $) | 3 Months Ended
--- | ---
Sep. 30, 2014 | Jun. 30, 2014
Accounting Policies [Abstract] |  |
Employee fraud resulting in gross loss | $ 421,000 |
Net loss recorded due to employee fraud | 136,000 |
Net of expected insurance proceeds | $ 285,000 |
Percentage of special stock dividend paid to shareholders |  | 4.00%

X
- Definition Represents the percentage of special stock dividend paid to common shareholders. + References No definition available. + Details
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Balance Type: | na
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- Definition This element represents amount of employee fraud resulting in gross loss of cash over an extended period of time. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents amount of net loss recorded due to employee fraud. + References No definition available. + Details
Name: | hwbk_NetLossRecordedDueToEmployeeFraud
Namespace Prefix: | hwbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition This element represents amount of net of expected insurance proceeds. + References No definition available. + Details
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Namespace Prefix: | hwbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
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