Loans Held For Investment Loans Held For Investment: Schedule of Past Due Status of Loans Held for Investment, Gross (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans deemed uncollectible, period of delinquency		90 days
Loans Held For Investment, Gross, Current		$ 874,032	$ 897,476
Loans Held For Investment, Gross, 30-89 Days Past Due		665	805
Loans Held For Investment, Gross, Non-Accrual	[1]	6,641	6,211
Loans Held For Investment, Gross		881,338	904,492
Mortgage loans, Single-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		318,671	307,863
Loans Held For Investment, Gross, 30-89 Days Past Due		660	804
Loans Held For Investment, Gross, Non-Accrual	[1]	5,621	6,141
Loans Held For Investment, Gross		324,952	314,808
Mortgage loans, Multi-family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		439,041	476,008
Loans Held For Investment, Gross, 30-89 Days Past Due		0	0
Loans Held For Investment, Gross, Non-Accrual	[1]	0	0
Loans Held For Investment, Gross		439,041	476,008
Mortgage loans, Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		111,928	109,726
Loans Held For Investment, Gross, 30-89 Days Past Due		0	0
Loans Held For Investment, Gross, Non-Accrual	[1]	0	0
Loans Held For Investment, Gross		111,928	109,726
Construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		3,667	3,174
Loans Held For Investment, Gross, 30-89 Days Past Due		0	0
Loans Held For Investment, Gross, Non-Accrual	[1]	971	0
Loans Held For Investment, Gross		4,638	3,174
Other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		167	167
Loans Held For Investment, Gross, 30-89 Days Past Due		0	0
Loans Held For Investment, Gross, Non-Accrual	[1]	0	0
Loans Held For Investment, Gross		167	167
Commercial business loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		429	430
Loans Held For Investment, Gross, 30-89 Days Past Due		0	0
Loans Held For Investment, Gross, Non-Accrual	[1]	49	70
Loans Held For Investment, Gross		478	500
Consumer loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans Held For Investment, Gross, Current		129	108
Loans Held For Investment, Gross, 30-89 Days Past Due		5	1
Loans Held For Investment, Gross, Non-Accrual	[1]	0	0
Loans Held For Investment, Gross		$ 134	$ 109

[1] All loans 90 days or greater past due are placed on non-accrual status.