Note 16 - Stockholders' Equity	12 Months Ended
Dec. 31, 2019
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	NOTE 1 6 Stockholders' Equity The Company's certificate of incorporation authorizes the issuance of up to 500,000 shares of preferred stock, and on December 23, 2008, the Company completed the sale of 26,000 shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series A (Preferred Stock) to the United States Department of Treasury (Treasury). The Preferred Stock had a liquidation value of $1,000 per share and a related warrant was also issued to purchase 833,333 shares of HMN common stock at an exercise price of $4.68 per share (the Warrant). The transaction was part of the Treasury’s Capital Purchase Program under the Emergency Economic Stabilization Act of 2008. On February 17, 2015, the Company redeemed the final 10,000 shares of outstanding Preferred Stock. On May 21, 2015, the Treasury sold the Warrant at an exercise price of $4.68 per share to three unaffiliated third party investors for an aggregate purchase price of $5.7 million. In 2018, all of the outstanding Warrants were either exercised by the Warrant holder or repurchased by the Company. These Warrant transactions resulted in the Company issuing an additional 319,651 shares of common stock from treasury shares for Warrants that were exercised and paying $6.5 million in cash to repurchase the remaining Warrants. As a result of these transactions, the Company no longer has any obligations under the Warrant. On November 28, 2018, the Board of Directors announced a new share repurchase program, pursuant to which the Company may purchase shares of its common stock for an aggregate purchase price not to exceed $6 million. The share repurchase program does not obligate the Company to purchase any shares and has no set expiration date. No shares were repurchased in the open market by the Company in 2019 or 2018 under the share repurchase program. The Company did not pay any dividends on its common stock during 2019, 2018 or 2017. In order to grant a priority to eligible accountholders in the event of future liquidation, the Bank, at the time of conversion to a stock savings bank, established a liquidation account equal to its regulatory capital as of September 30, 1993. In the event of future liquidation of the Bank, an eligible accountholder who continues to maintain their deposit account shall be entitled to receive a distribution from the liquidation account. The total amount of the liquidation account will decrease as the balance of eligible accountholders is reduced subsequent to the conversion, based on an annual determination of such balance.

NOTE

Stockholders' Equity

The Company's certificate of incorporation authorizes the issuance of up to

500,000

shares of preferred stock, and on

December 23, 2008,

the Company completed the sale of

26,000

shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series A (Preferred Stock) to the United States Department of Treasury (Treasury). The Preferred Stock had a liquidation value of

$1,000

per share and a related warrant was also issued to purchase

833,333

shares of HMN common stock at an exercise price of

$4.68

per share (the Warrant). The transaction was part of the Treasury’s Capital Purchase Program under the Emergency Economic Stabilization Act of

2008.

February 17, 2015,

the Company redeemed the final

10,000

shares of outstanding Preferred Stock. On

May 21, 2015,

the Treasury sold the Warrant at an exercise price of

$4.68

per share to

three

unaffiliated

third

party investors for an aggregate purchase price of

$5.7

million. In

2018,

all of the outstanding Warrants were either exercised by the Warrant holder or repurchased by the Company. These Warrant transactions resulted in the Company issuing an additional

319,651

shares of common stock from treasury shares for Warrants that were exercised and paying

$6.5

million in cash to repurchase the remaining Warrants. As a result of these transactions, the Company

longer has any obligations under the Warrant.

November 28, 2018,

the Board of Directors announced a new share repurchase program, pursuant to which the Company

may

purchase shares of its common stock for an aggregate purchase price

not

to exceed

million. The share repurchase program does

not

obligate the Company to purchase any shares and has

set expiration date.

shares were repurchased in the open market by the Company in

2019

2018

under the share repurchase program. The Company did

not

pay any dividends on its common stock during

2019,

2018

2017.

In order to grant a priority to eligible accountholders in the event of future liquidation, the Bank, at the time of conversion to a stock savings bank, established a liquidation account equal to its regulatory capital as of

September 30, 1993.

In the event of future liquidation of the Bank, an eligible accountholder who continues to maintain their deposit account shall be entitled to receive a distribution from the liquidation account. The total amount of the liquidation account will decrease as the balance of eligible accountholders is reduced subsequent to the conversion, based on an annual determination of such balance.