Investment Securities Investment Securities: Investments with Unrealized Loss Positions (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Schedule of Available-for-sale Securities [Line Items]
Unrealized Holding Losses, Less Than 12 Months, Fair Value	$ 28,722	$ 103
Unrealized Holding Losses, Less Than 12 Months, Unrealized Losses	77	1
Unrealized Holding Losses, 12 Months or More, Fair Value	0	0
Unrealized Holding Losses, 12 Months or More, Unrealized Losses	0	0
Unrealized Holding Losses, Fair Value	28,722	103
Unrealized Holding Losses, Unrealized Losses	77	1
U.S. government sponsored enterprise MBS
Schedule of Available-for-sale Securities [Line Items]
Unrealized Holding Losses, Less Than 12 Months, Fair Value	28,722
Unrealized Holding Losses, Less Than 12 Months, Unrealized Losses	77
Unrealized Holding Losses, 12 Months or More, Fair Value	0
Unrealized Holding Losses, 12 Months or More, Unrealized Losses	0
Unrealized Holding Losses, Fair Value	28,722
Unrealized Holding Losses, Unrealized Losses	$ 77
Private issue CMO
Schedule of Available-for-sale Securities [Line Items]
Unrealized Holding Losses, Less Than 12 Months, Fair Value		103
Unrealized Holding Losses, Less Than 12 Months, Unrealized Losses		1
Unrealized Holding Losses, 12 Months or More, Fair Value		0
Unrealized Holding Losses, 12 Months or More, Unrealized Losses		0
Unrealized Holding Losses, Fair Value		103
Unrealized Holding Losses, Unrealized Losses		$ 1

Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer.

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Amount of unrealized loss on securities classified as available-for-sale.

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This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

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Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

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This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27290-111563

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27337-111563

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