Loans Held For Investment Loans Held For Investment: Schedule of Allowance For Loan Losses and Recorded Investment in Gross Loans, by Portfolio Type (Details) - USD ($) $ in Thousands	3 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 8,039	$ 8,670
Provision (recovery) for loan losses	169	(150)
Recoveries	84	271
Allowance for Loan and Lease Losses Write-offs, Net	(229)	(66)
Balance at end of period	8,063	8,725
Loans receivable, individually evaluated allowance	32	20	$ 101
Loans receivable, collectively evaluated allowance	8,031	8,705	7,938
Financing Receivable, Individually Evaluated for Impairment	6,318	7,105
Financing Receivable, Collectively Evaluated for Impairment	912,412	861,214
Loans Held For Investment, Gross	$ 918,730	$ 868,319	916,432
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.88%	1.01%
Mortgage loans, Single-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 3,601	$ 4,933
Provision (recovery) for loan losses	123	(555)
Recoveries	84	263
Allowance for Loan and Lease Losses Write-offs, Net	(229)	(66)
Balance at end of period	3,579	4,575
Loans receivable, individually evaluated allowance	17	0	86
Loans receivable, collectively evaluated allowance	3,562	4,575	3,515
Financing Receivable, Individually Evaluated for Impairment	6,239	6,634
Financing Receivable, Collectively Evaluated for Impairment	316,124	306,161
Loans Held For Investment, Gross	$ 322,363	$ 312,795	322,197
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	1.11%	1.46%
Mortgage loans, Multi-family
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 3,420	$ 2,800
Provision (recovery) for loan losses	11	379
Recoveries	0	7
Allowance for Loan and Lease Losses Write-offs, Net	0	0
Balance at end of period	3,431	3,186
Loans receivable, individually evaluated allowance	0	0
Loans receivable, collectively evaluated allowance	3,431	3,186	3,420
Financing Receivable, Individually Evaluated for Impairment	0	377
Financing Receivable, Collectively Evaluated for Impairment	482,617	438,046
Loans Held For Investment, Gross	$ 482,617	$ 438,423	479,959
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.71%	0.73%
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 879	$ 848
Provision (recovery) for loan losses	(4)	6
Recoveries	0	0
Allowance for Loan and Lease Losses Write-offs, Net	0	0
Balance at end of period	875	854
Loans receivable, individually evaluated allowance	0	0
Loans receivable, collectively evaluated allowance	875	854	879
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	96,863	100,136
Loans Held For Investment, Gross	$ 96,863	$ 100,136	97,562
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.90%	0.85%
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 96	$ 31
Provision (recovery) for loan losses	44	22
Recoveries	0	0
Allowance for Loan and Lease Losses Write-offs, Net	0	0
Balance at end of period	140	53
Loans receivable, individually evaluated allowance	0	0
Loans receivable, collectively evaluated allowance	140	53	96
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	16,290	15,811
Loans Held For Investment, Gross	$ 16,290	$ 15,811	16,009
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.86%	0.34%
Mortgage Loans, Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period		$ 7
Provision (recovery) for loan losses		0
Recoveries		0
Allowance for Loan and Lease Losses Write-offs, Net		0
Balance at end of period		7
Loans receivable, individually evaluated allowance		0
Loans receivable, collectively evaluated allowance		7
Financing Receivable, Individually Evaluated for Impairment		0
Financing Receivable, Collectively Evaluated for Impairment		331
Loans Held For Investment, Gross		$ 331
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period		2.11%
Commercial Business Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 36	$ 43
Provision (recovery) for loan losses	(5)	(1)
Recoveries	0	0
Allowance for Loan and Lease Losses Write-offs, Net	0	0
Balance at end of period	31	42
Loans receivable, individually evaluated allowance	15	20	15
Loans receivable, collectively evaluated allowance	16	22	21
Financing Receivable, Individually Evaluated for Impairment	79	94
Financing Receivable, Collectively Evaluated for Impairment	387	530
Loans Held For Investment, Gross	$ 466	$ 624	576
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	6.65%	6.73%
Consumer Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance at beginning of period	$ 7	$ 8
Provision (recovery) for loan losses	0	(1)
Recoveries	0	1
Allowance for Loan and Lease Losses Write-offs, Net	0	0
Balance at end of period	7	8
Loans receivable, individually evaluated allowance	0	0
Loans receivable, collectively evaluated allowance	7	8	7
Financing Receivable, Individually Evaluated for Impairment	0	0
Financing Receivable, Collectively Evaluated for Impairment	131	199
Loans Held For Investment, Gross	$ 131	$ 199	$ 129
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	5.34%	4.02%

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Amount, after recoveries, of loans and leases that have been written-off.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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