Note 9 - Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) by Component, Net of Tax (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Balance	$ 80,202	$ 86,662	$ 96,959	$ 93,233	$ 90,870	$ 91,480	$ 96,959	$ 91,480
Net current period other comprehensive income (loss)	(7,299)	(7,848)	(12,005)	(1,463)	1,228	(2,080)
Balance	70,975	80,202	86,662	94,440	93,233	90,870	70,975	94,440
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(19,959)		(106)	1,368		2,220	(106)	2,220
Other comprehensive income before reclassification	(7,442)			(1,329)			(27,369)	(2,157)
Amounts reclassified from accumulated other comprehensive income (loss)	143			(134)			217	(158)
Net current period other comprehensive income (loss)	(7,299)			(1,463)			(27,152)	(2,315)
Balance	(27,258)	(19,959)		(95)	1,368		(27,258)	(95)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance	(5,071)		(5,071)	(5,704)		(5,704)	(5,071)	(5,704)
Other comprehensive income before reclassification	0			0			0	0
Amounts reclassified from accumulated other comprehensive income (loss)	0			0			0	0
Net current period other comprehensive income (loss)	0			0			0	0
Balance	(5,071)	(5,071)		(5,704)	(5,704)		(5,071)	(5,704)
AOCI Attributable to Parent [Member]
Balance	(25,030)	(17,182)	(5,177)	(4,336)	(5,564)	(3,484)	(5,177)	(3,484)
Other comprehensive income before reclassification	(7,442)			(1,329)			(27,369)	(2,157)
Amounts reclassified from accumulated other comprehensive income (loss)	143			(134)			217	(158)
Net current period other comprehensive income (loss)	(7,299)	(7,848)	(12,005)	(1,463)	1,228	(2,080)	(27,152)	(2,315)
Balance	$ (32,329)	$ (25,030)	$ (17,182)	$ (5,799)	$ (4,336)	$ (5,564)	$ (32,329)	$ (5,799)

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 4.E)
-URI https://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

EMCLAIRE FINANCIAL CORP 10-Q