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Summary of Significant Accounting Policies (Detail Textuals 1) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | --- | ---
Jun. 11, 2013 | Dec. 19, 2008 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | May 15, 2013 | May 09, 2012
Class of Stock [Line Items] |  |  |  |  |  |  |
Term of warrants |  | 10 years |  |  |  |  |
Total repurchase price |  |  | $ 0 us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock | $ 18,255 us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock | $ 12,000 us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock |  |
Repurchase price of warrant | 540 us-gaap_PaymentsForRepurchaseOfWarrants |  | 0 us-gaap_PaymentsForRepurchaseOfWarrants | 540 us-gaap_PaymentsForRepurchaseOfWarrants | 0 us-gaap_PaymentsForRepurchaseOfWarrants |  |
Repurchase price of warrant (in dollars per warrant share) | $ 1.88 hwbk_ClassOfWarrantOrRightRepurchasePriceOfWarrantsOrRights |  |  |  |  |  |
Common Stock |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Number of common shares called per warrant |  | 287,133 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight / us-gaap_StatementClassOfStockAxis = us-gaap_CommonStockMember |  |  |  |  |
Preferred Stock |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Number of shares issued |  | 30,255 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |  |  |  |  |
Par value of share issued (in dollars per share) |  | 1,000 us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember |  |  |  |  |
Number of shares redeemed |  |  |  |  |  | 18,255 us-gaap_StockRedeemedOrCalledDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember | 12,000 us-gaap_StockRedeemedOrCalledDuringPeriodShares / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember
Total repurchase price |  |  |  |  |  | $ 18,500 us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember | $ 12,100 us-gaap_PaymentsForRepurchaseOfRedeemablePreferredStock / us-gaap_StatementClassOfStockAxis = us-gaap_PreferredStockMember

X
- Definition Represents the repurchase price per share or per unit of warrants or rights repurchased. + References No definition available. + Details
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- Definition The period of time, from the date of issuance until the time at which the warrant expires. + References No definition available. + Details
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- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
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- Definition The cash outflow for reacquisition of callable preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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