Note 10 - Restrictions on Dividends	12 Months Ended
Dec. 31, 2022
Notes to Financial Statements
Restrictions on Dividends, Loans and Advances [Text Block]	*Note 10:* Restrictions on Dividends** The Company’s principal source of funds for dividend payments is dividends received from its subsidiary bank. For the years ended December 31, 2022 and 2021, dividends received from the subsidiary bank were $25,000 and $14,508, respectively. Substantially all of NBI’s retained earnings are undistributed earnings of its sole banking subsidiary, which are restricted by various regulations administered by federal bank regulatory agencies. Bank regulatory agencies restrict, unless prior approval is obtained, the total dividend payments of a bank in any calendar year to the bank’s retained net income of that year to date, as defined, combined with its retained net income of the preceding two years, less any dividends paid. During 2022 and 2021, the Bank applied to its primary regulator and was approved to dividend to NBI an amount in excess of the regulatory maximum. The purpose in the excess dividend was to provide cash for stock repurchases. At December 31, 2022, NBB had no retained net income free of restriction. The Bank remains in a highly capitalized position and the Company intends to request approval for additional dividends in 2023.

Note 10 - Restrictions on Dividends

12 Months Ended

Dec. 31, 2022

Restrictions on Dividends, Loans and Advances [Text Block]

Note 10: Restrictions on Dividends

The Company’s principal source of funds for dividend payments is dividends received from its subsidiary bank. For the years ended December 31, 2022 and 2021, dividends received from the subsidiary bank were $25,000 and $14,508, respectively.

Substantially all of NBI’s retained earnings are undistributed earnings of its sole banking subsidiary, which are restricted by various regulations administered by federal bank regulatory agencies. Bank regulatory agencies restrict, unless prior approval is obtained, the total dividend payments of a bank in any calendar year to the bank’s retained net income of that year to date, as defined, combined with its retained net income of the preceding two years, less any dividends paid. During 2022 and 2021, the Bank applied to its primary regulator and was approved to dividend to NBI an amount in excess of the regulatory maximum. The purpose in the excess dividend was to provide cash for stock repurchases. At December 31, 2022, NBB had no retained net income free of restriction. The Bank remains in a highly capitalized position and the Company intends to request approval for additional dividends in 2023.