Note 18 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Noninterest income (in scope of Topic 606)	$ 2,978	$ 2,721
Noninterest income	4,268	3,391
Deposit Account [Member]
Noninterest income (in scope of Topic 606)	1,264	1,200
Debit Card [Member]
Noninterest income (in scope of Topic 606)	1,454	1,333
Financial Service, Other [Member]
Noninterest income (in scope of Topic 606)	260	188
Product and Service, Out of Scope of ASC 606 [Member]
Noninterest income	$ 1,290	$ 670

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration