Note 16 - Emclaire Financial Corp - Condensed Financial Statements, Parent Corporation Only - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Net income	$ 7,954	$ 4,211
Change in fair value of equity securities, including realized gain	(12)	(500)
Net cash provided by operating activities	10,428	6,612
Net cash provided by investing activities	(11,862)	(21,984)
Dividends paid	(3,313)	(2,753)
Net cash used in financing activities	5,465	16,151
Increase (decrease) in cash and cash equivalents	4,031	779
Cash and cash equivalents at beginning of period	10,955	10,176
Cash and cash equivalents at end of period	14,986	10,955
Parent Company [Member]
Net income	7,954	4,211
Undistributed equity in net income of subsidiary	(3,922)	(1,125)
Change in fair value of equity securities, including realized gain		(510)
Other, net	303	1,323
Net cash provided by operating activities	4,335	3,899
Sales of investment securities		1,269
Net cash provided by investing activities		1,269
Net change in borrowings	(1,000)	(2,450)
Dividends paid	(3,313)	(2,753)
Net cash used in financing activities	(4,313)	(5,203)
Increase (decrease) in cash and cash equivalents	22	(35)
Cash and cash equivalents at beginning of period	18	53
Cash and cash equivalents at end of period	$ 40	$ 18