Loans Held For Investment: Schedule of Restructured Loans by Type, Net of Individually Evaluated Allowances (Details) $ in Thousands	3 Months Ended	12 Months Ended
Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2018 USD ($) loan	Jun. 30, 2017 USD ($) loan
Financing Receivable, Impaired [Line Items]
Number of modified loans \| loan	11	10	2	0
Loans receivable, modified and extended beyond initial maturity				$ 100
Restructured loans, Recorded Investment	$ 6,248	$ 8,335	$ 6,248	8,335
Restructured loans, Allowance for Loan Losses	(191)	(340)	(191)	(340)
Restructured loans, Net Investment	6,057	7,995	6,057	7,995
Restructured Loans, Allowance for Loan Losses	(157)	(112)	(157)	(112)
Restructured Loans, Unpaid Principal Balance	5,748	4,183	5,748	4,183
Restructured Loans, Related Charge-offs	(411)	(439)	(411)	(439)
Restructured Loans, Recorded Investment	5,337	3,744	5,337	3,744
Restructured Loans, Recorded Investment, Net of Allowance	5,180	3,632	5,180	3,632
Loans receivable, restructured loans, accrual status	3,392	3,126	3,392	3,126
Mortgage loans, Single-family
Financing Receivable, Impaired [Line Items]
Restructured Loans, With Related Allowance, Unpaid Principal Balance	2,228	485	2,228	485
Restructured loans, With a related allowance, Recorded Investment	1,333	1,821	1,333	1,821
Restructured loans, Without a related allowance, Recorded Investment	4,845	6,233	4,845	6,233
Restructured loans, Recorded Investment	6,178	8,054	6,178	8,054
Restructured loans, Allowance for Loan Losses	(185)	(325)	(185)	(325)
Restructured loans, With a related allowance, Net Investment	1,148	1,496	1,148	1,496
Restructured loans, Net Investment	5,993	7,729	5,993	7,729
Restructured Loans, With Related Allowance, Related Charge-offs	0	0	0	0
Restructured Loans, With a Related Allowance, Recorded Investment	2,228	485	2,228	485
Restructured Loans, Allowance for Loan Losses	(151)	(97)	(151)	(97)
Restructured Loans, Recorded Investment, With Related Allowance, Net	2,077	388	2,077	388
Restructured Loans, Without a Related Allowance, Unpaid Principal Balance	3,450	3,618	3,450	3,618
Restructured Loans, Without a Related Allowance, Related Charge-offs	(411)	(439)	(411)	(439)
Restructured Loans, Without a Related Allowance, Recorded Investment	3,039	3,179	3,039	3,179
Restructured Loans, Without a Related Allowance, Net Investment	3,039	3,179	3,039	3,179
Restructured Loans, Unpaid Principal Balance	5,678	4,103	5,678	4,103
Restructured Loans, Related Charge-offs	(411)	(439)	(411)	(439)
Restructured Loans, Recorded Investment	5,267	3,664	5,267	3,664
Restructured Loans, Recorded Investment, Net of Allowance	5,116	3,567	5,116	3,567
Loans receivable, restructured loans, accrual status	3,328	3,061	3,328	3,061
Mortgage loans, Multi-family
Financing Receivable, Impaired [Line Items]
Restructured loans, With a related allowance, Recorded Investment		0		0
Restructured loans, Without a related allowance, Recorded Investment		0		0
Restructured loans, Recorded Investment		0		0
Restructured loans, Allowance for Loan Losses		0		0
Restructured loans, With a related allowance, Net Investment		0		0
Restructured loans, Net Investment		0		0
Mortgage loans, Commercial real estate
Financing Receivable, Impaired [Line Items]
Restructured loans, Without a related allowance, Recorded Investment	0	201	0	201
Restructured loans, Recorded Investment	0	201	0	201
Restructured loans, Allowance for Loan Losses	0	0	0	0
Restructured loans, Net Investment	0	201	0	201
Commercial Loan [Member]
Financing Receivable, Impaired [Line Items]
Restructured Loans, With Related Allowance, Unpaid Principal Balance	70	80	70	80
Restructured loans, With a related allowance, Recorded Investment	70	80	70	80
Restructured loans, Recorded Investment	70	80	70	80
Restructured loans, Allowance for Loan Losses	(6)	(15)	(6)	(15)
Restructured loans, With a related allowance, Net Investment	64	65	64	65
Restructured loans, Net Investment	64	65	64	65
Restructured Loans, With Related Allowance, Related Charge-offs	0	0	0	0
Restructured Loans, With a Related Allowance, Recorded Investment	70	80	70	80
Restructured Loans, Allowance for Loan Losses	(6)	(15)	(6)	(15)
Restructured Loans, Recorded Investment, With Related Allowance, Net	64	65	64	65
Restructured Loans, Unpaid Principal Balance	70	80	70	80
Restructured Loans, Related Charge-offs	0	0	0	0
Restructured Loans, Recorded Investment	70	80	70	80
Restructured Loans, Recorded Investment, Net of Allowance	64	65	64	65
Loans receivable, restructured loans, accrual status	$ 64	$ 65	64	65
Substandard [Member]
Financing Receivable, Impaired [Line Items]
Number of modified loans \| loan	9	9
Loans receivable, restructured loans, accrual status	$ 3,400	$ 3,100	$ 3,400	$ 3,100

Financing Receivable, Modifications, Recorded Investment, Extending Beyond Initial Maturity

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-Publisher FASB
-Name Accounting Standards Codification
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