Note 8 - Revenue Recognition - Noninterest Income (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Noninterest income (in scope of Topic 606)	$ 1,160	$ 740
Noninterest income	1,469	1,495
Deposit Account [Member]
Noninterest income (in scope of Topic 606)	373	316
Debit Card [Member]
Noninterest income (in scope of Topic 606)	391	358
Financial Service, Other [Member]
Noninterest income (in scope of Topic 606)	396	66
Product and Service, Out of Scope of ASC 606 [Member]
Noninterest income	$ 309	$ 755

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