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Intangible Assets (Detail Textuals) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jun. 30, 2013
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Amortization expense | $ 0 us-gaap_AmortizationOfIntangibleAssets | $ 135,000 us-gaap_AmortizationOfIntangibleAssets | $ 408,000 us-gaap_AmortizationOfIntangibleAssets |
Core Deposit Intangible Asset |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Gross Carrying Amount |  |  |  | 4,800,000 us-gaap_FiniteLivedIntangibleAssetsGross / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember
Amortization expense | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember | 135,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember | 408,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_CoreDepositsMember |
Mortgage servicing rights (MSRs) |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Mortgage loans serviced for others | 313,900,000 hwbk_LoansServicedForOthers / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember | 322,500,000 hwbk_LoansServicedForOthers / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember |  |
Mortgage loan servicing fees reported as other non-interest income | 895,000 us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember | 901,000 us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember | 878,000 us-gaap_ContractuallySpecifiedServicingFeesLateFeesAndAncillaryFeesEarnedInExchangeForServicingFinancialAssets / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember |
Amortization | 0 us-gaap_ServicingAssetAtAmortizedValueAmortization1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember | 0 us-gaap_ServicingAssetAtAmortizedValueAmortization1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember | 0 us-gaap_ServicingAssetAtAmortizedValueAmortization1 / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember |
Mortgage servicing rights (MSRs) | Error adjustment related to amortization method of MSR's |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |
Cumulative effect of change in accounting principle as increase to retained earnings | 459,890 us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1 / us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis = hwbk_ErrorAdjustmentAmortizationMethodMortgageServicingRightsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember |  |  |
Amortization |  |  | $ 538,000 us-gaap_ServicingAssetAtAmortizedValueAmortization1 / us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis = hwbk_ErrorAdjustmentAmortizationMethodMortgageServicingRightsMember / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis = us-gaap_ServicingContractsMember |

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- Definition Represents the carrying amount of loans serviced for others by the reporting entity. + References No definition available. + Details
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X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition The total amount of contractually specified servicing fees, late fees, and ancillary fees earned for each period for which results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122596-111746 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22499-107794 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22580-107794 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Direct Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6510796 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Indirect Effects of a Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6515603 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Accounting Change -URI http://asc.fasb.org/extlink&oid=6503790 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Change in Accounting Principle -URI http://asc.fasb.org/extlink&oid=6507316 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Retrospective Application -URI http://asc.fasb.org/extlink&oid=6523989 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28359718&loc=d3e22583-107794 + Details
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- Definition Amount of amortization of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 4 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=7882072&loc=d3e122739-111746 + Details
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