Note 16 - Earnings Per Common Share - Components Used to Compute Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Net loss available to common shareholders	$ (4,191)	$ (6,613)
Dividends and undistributed earnings allocated to participating securities	0	(4)
Loss allocated to common shareholders	$ (4,191)	$ (6,617)
Weighted average common shares outstanding (in shares)	9,426,374	9,443,885
Weighted average unvested restricted stock awards (in shares)	(135,101)	(105,460)
Weighted average unallocated ESOP shares (in shares)	(500,554)	(553,576)
Total basic weighted average common shares outstanding (in shares)	8,790,719	8,784,849
Basic weighted average common shares outstanding (in shares)	8,790,719	8,784,849
Dilutive restricted stock awards (in shares)	0	0
Total diluted weighted average common shares outstanding (in shares)	8,790,719	8,784,849
Basic and diluted loss per common share (in dollars per share)	$ (0.48)	$ (0.75)
Diluted loss per common share (in dollars per share)	$ (0.48)	$ (0.75)