Note 16 - Commitments and Contingencies (Details) $ in Millions	Sep. 30, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Letters of Credit Issued and Available Amount	$ 3.2

The letters of credit issued and available amount.

No definition available.

Name:	hmnf_LettersOfCreditIssuedAndAvailableAmount
Namespace Prefix:	hmnf_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant