Name:	hmnf_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldChangeDueToPaymentsOrRefinances
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Amount of adjustment to contractual principal receivable of certain loans acquired in transfer not accounted for as debt securities due to payments or refinances.

No definition available.

Name:	hmnf_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesContractualPrincipalReceivableChangeDueToPaymentsOrRefinances
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Amount of increase, resulting from payments or refinances of a loan, in the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

No definition available.

Name:	hmnf_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesNetCarryingAmountChangeDueToPaymentsOrRefinances
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Adjustment to non-accretable difference due to payments or refinances in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

No definition available.

Name:	hmnf_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesNonAccretableDifference
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Amount of non-accretable difference in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

No definition available.

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Namespace Prefix:	hmnf_
Data Type:	xbrli:monetaryItemType
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- References

No definition available.

Name:	hmnf_PurchasedPerformingLoansContractualPrincipalReceivableAbstract
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Data Type:	xbrli:stringItemType
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Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544

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Period Type:	instant

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and allowance for loan losses). This relates to loans not accounted for debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538

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The undiscounted sum of all amounts, including amounts deemed principal, interest, fees, penalties, and other under the loan, owed to the investor at the reporting date, whether or not currently due and whether or not any such amounts have been written or charged off by the investor. This relates to loans not accounted for as debt securities, with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544