Loans and Allowance for Loan Losses (Details 2) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	$ 5,092,822	$ 3,747,566
Collectively evaluated for impairment	10,220,762	10,061,658
Total	15,313,584	13,809,224
Individually evaluated for impairment	44,760,104	53,451,277
Collectively evaluated for impairment	799,344,879	789,479,271
Net loans	828,791,399	829,121,324
Commercial, Financial, and Agricultural [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	1,595,235	238,840
Collectively evaluated for impairment	1,449,561	1,565,342
Total	3,044,796	1,804,182
Individually evaluated for impairment	6,385,611	4,427,673
Collectively evaluated for impairment	122,471,885	124,127,500
Net loans	128,857,496	128,555,173
Real Estate Construction - Residential [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	59,493	166,300
Collectively evaluated for impairment	650,002	1,021,221
Total	709,495	1,187,521
Individually evaluated for impairment	280,267	1,146,794
Collectively evaluated for impairment	19,550,433	29,054,404
Net loans	19,830,700	30,201,198
Real Estate Construction - Commercial [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	576,373	379,921
Collectively evaluated for impairment	1,067,655	1,182,057
Total	1,644,028	1,561,978
Individually evaluated for impairment	8,008,355	7,867,059
Collectively evaluated for impairment	34,833,117	39,829,700
Net loans	42,841,472	47,696,759
Real Estate Mortgage - Residential [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	720,537	653,279
Collectively evaluated for impairment	2,838,972	2,598,203
Total	3,559,509	3,251,482
Individually evaluated for impairment	4,979,777	6,569,367
Collectively evaluated for impairment	215,354,376	196,884,837
Net loans	220,334,153	203,454,204
Real Estate Mortgage - Commercial [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment	2,141,184	2,309,226
Collectively evaluated for impairment	3,966,186	3,424,849
Total	6,107,370	5,734,075
Individually evaluated for impairment	25,106,094	33,440,384
Collectively evaluated for impairment	379,362,910	369,519,943
Net loans	404,469,004	402,960,327
Installment Loans to Individuals [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment
Collectively evaluated for impairment	231,593	266,990
Total	231,593	266,990
Individually evaluated for impairment
Collectively evaluated for impairment	27,772,158	30,062,887
Net loans	27,772,158	30,062,887
Unallocated [Member]
Allowance for loan losses by impairment methodology
Individually evaluated for impairment
Collectively evaluated for impairment	16,793	2,996
Total	16,793	2,996
Individually evaluated for impairment
Collectively evaluated for impairment
Net loans

Allowance for loan losses and loans outstanding.

No definition available.

Name:	hwbk_AllowanceForLoanLossesAndLoansOutstanding
Namespace Prefix:	hwbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

+ Details

Name:	us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The balance of financing receivables that were collectively evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

-Subparagraph (h)

-URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524

+ Details

Name:	us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 01-6

-Paragraph 13

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.7)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant