Note 19 - Fair Value Measurements - Impaired Loans and Foreclosed Real Estate, Measurements On Nonrecurring Basis (Details) - USD ($)	Mar. 31, 2017	Mar. 31, 2016
Premises and equipment held for sale	$ 547,884	$ 405,000
Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	5,371,689	7,378,535
Foreclosed real estate	503,094	443,015
Premises and equipment held for sale		405,000
Premises and equipment held for sale	547,884
Loans held for sale		266,176
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Impaired loans
Foreclosed real estate
Premises and equipment held for sale
Loans held for sale
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Impaired loans
Foreclosed real estate
Premises and equipment held for sale
Loans held for sale		266,176
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Nonrecurring [Member]
Impaired loans	5,371,689	7,378,535
Foreclosed real estate	503,094	443,015
Premises and equipment held for sale		$ 405,000
Premises and equipment held for sale	547,884
Loans held for sale

The fair value of impaired loans that are net of allowance.

No definition available.

Name:	hbk_ImpairedLoansNetOfAllowanceFairValueDisclosure
Namespace Prefix:	hbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The fair value of real estate that acquired through foreclosure.

+ References

No definition available.

+ Details

Name:	hbk_RealEstateAcquiredThroughForeclosureFairValueDisclosure
Namespace Prefix:	hbk_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

+ Details

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

- Definition

Amount of assets held-for-sale that are not part of a disposal group.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=77912953&loc=d3e400-110220

+ Details

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

- Definition

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

+ References

No definition available.

+ Details

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

- Details

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- Details

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- Details

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- Details

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