XML 118 R100.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Earnings per Share (Parentheticals) (Details 2) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Earnings Per Share [Abstract] |  |  |
Common Stock, Dividend Rate, Percentage | 4.00% | 4.00% | 4.00%

X
- Definition The percentage rate used to calculate dividend payments on common stock. + References No definition available. + Details
Name: | hwbk_CommonStockDividendRatePercentage
Namespace Prefix: | hwbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration