Note 16 - Emclaire Financial Corp - Condensed Financial Statements, Parent Corporation Only - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Interest expense	$ 8,062	$ 8,083
Noninterest expense	22,018	22,122
Net income before income taxes	8,183	9,616
Income tax benefit	1,435	1,662
Net income	6,748	7,954
Comprehensive income	8,599	8,976
Parent Company [Member]
Dividends from subsidiaries	5,186	4,688
Interest expense	118	205
Noninterest expense	710	634
Total expense	828	839
Income before income taxes and undistributed subsidiary income	4,358	3,849
Undistributed equity in net income of subsidiary	2,216	3,922
Net income before income taxes	6,574	7,771
Income tax benefit	(174)	(183)
Net income	6,748	7,954
Comprehensive income	$ 8,599	$ 8,976