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Summary of Significant Accounting Policies (Detail Textuals) (USD $) | 0 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jul. 01, 2014 | Sep. 30, 2014 | Dec. 31, 2014
Accounting Policies [Abstract] |  |  |
Employee fraud resulting in gross loss |  | $ 421,000 hwbk_EmployeeFraudResultingInGrossLoss |
Net loss recorded due to employee fraud |  |  | 136,000 hwbk_NetLossRecordedDueToEmployeeFraud
Net of expected insurance proceeds |  | $ 285,000 hwbk_NetOfExpectedInsuranceProceeds |
Percentage of special stock dividend paid to shareholders | 4.00%hwbk_CommonStockSpecialDividendPaidPercentage |  |

X
- Definition Represents the percentage of special stock dividend paid to common shareholders. + References No definition available. + Details
Name: | hwbk_CommonStockSpecialDividendPaidPercentage
Namespace Prefix: | hwbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | hwbk_EmployeeFraudResultingInGrossLoss
Namespace Prefix: | hwbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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

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

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