Note N - Condensed Parent Company Only Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash in bank subsidiary	$ 22,794	$ 32,836	$ 49,991	$ 91,542
Other assets	1,854	2,953
Total assets	797,738	861,639
Other liabilities	1,884	1,467
Shareholders' equity	69,283	55,194	91,729	94,671
Total liabilities and shareholders' equity	797,738	861,639
Parent Company [Member]
Cash in bank subsidiary	236	193	$ 166	$ 92
Other assets	375	337
Total assets	69,283	55,194
Other liabilities	0	0
Shareholders' equity	69,283	55,194
Total liabilities and shareholders' equity	69,283	55,194
Parent Company [Member] | The Peoples Bank, Biloxi, Mississippi [Member]
Investments in subsidiaries, at underlying equity	$ 68,672	$ 54,664