Loans Held for Investment (Details 6) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 7,061	$ 8,075	$ 7,385	$ 8,039
Provision (recovery) for loan losses	4	(505)	(450)	(347)
Recoveries	23	71	179	203
Charge-offs	(8)	(110)	(34)	(364)
Balance, end of the period	7,080	7,531	7,080	7,531
Allowance for loan losses:
Individually evaluated for impairment	132	176	132	176	$ 157
Collectively evaluated for impairment	6,948	7,355	6,948	7,355	7,228
Loans held for investment:
Individually evaluated for impairment	6,802	8,002	6,802	8,002
Collectively evaluated for impairment	878,111	888,017	878,111	888,017
Total loans held for investment, gross	$ 884,913	$ 896,019	$ 884,913	$ 896,019	904,492
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.79%	0.84%	0.79%	0.84%
Mortgage loans, Single-family
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 2,679	$ 3,303	$ 2,783	$ 3,601
Provision (recovery) for loan losses	(58)	(143)	(292)	(319)
Recoveries	22	71	177	203
Charge-offs	(6)	(110)	(31)	(364)
Balance, end of the period	2,637	3,121	2,637	3,121
Allowance for loan losses:
Individually evaluated for impairment	123	161	123	161	151
Collectively evaluated for impairment	2,514	2,960	2,514	2,960	2,632
Loans held for investment:
Individually evaluated for impairment	6,004	7,929	6,004	7,929
Collectively evaluated for impairment	308,820	308,983	308,820	308,983
Total loans held for investment, gross	$ 314,824	$ 316,912	$ 314,824	$ 316,912
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.84%	0.98%	0.84%	0.98%
Mortgage loans, Multi-family
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 3,280	$ 3,295	$ 3,492	$ 3,420
Provision (recovery) for loan losses	20	17	(192)	(108)
Recoveries	0	0	0	0
Charge-offs	0	0	0	0
Balance, end of the period	3,300	3,312	3,300	3,312
Allowance for loan losses:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	3,300	3,312	3,300	3,312	3,492
Loans held for investment:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	449,812	466,266	449,812	466,266
Total loans held for investment, gross	$ 449,812	$ 466,266	$ 449,812	$ 466,266
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.73%	0.71%	0.73%	0.71%
Mortgage loans, Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 1,019	$ 933	$ 1,030	$ 879
Provision (recovery) for loan losses	23	33	12	87
Recoveries	0	0	0	0
Charge-offs	0	0	0	0
Balance, end of the period	1,042	966	1,042	966
Allowance for loan losses:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	1,042	966	1,042	966	1,030
Loans held for investment:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	115,355	106,937	115,355	106,937
Total loans held for investment, gross	$ 115,355	$ 106,937	$ 115,355	$ 106,937
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	0.90%	0.90%	0.90%	0.90%
Mortgage loans, Construction
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 48	$ 504	$ 47	$ 96
Provision (recovery) for loan losses	15	(410)	16	(2)
Recoveries	0	0	0	0
Charge-offs	0	0	0	0
Balance, end of the period	63	94	63	94
Allowance for loan losses:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	63	94	63	94	47
Loans held for investment:
Individually evaluated for impairment	745	0	745	0
Collectively evaluated for impairment	3,394	5,324	3,394	5,324
Total loans held for investment, gross	$ 4,139	$ 5,324	$ 4,139	$ 5,324
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	1.52%	1.77%	1.52%	1.77%
Mortgage loans other
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 3		$ 3
Provision (recovery) for loan losses	0		0
Recoveries	0		0
Charge-offs	0		0
Balance, end of the period	3		3
Allowance for loan losses:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	3		3		3
Loans held for investment:
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	167		167
Total loans held for investment, gross	$ 167		$ 167
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	1.80%		1.80%
Commercial business loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 26	$ 32	$ 24	$ 36
Provision (recovery) for loan losses	1	(1)	3	(5)
Recoveries	0	0	0	0
Charge-offs	0	0	0	0
Balance, end of the period	27	31	27	31
Allowance for loan losses:
Individually evaluated for impairment	9	15	9	15	6
Collectively evaluated for impairment	18	16	18	16	18
Loans held for investment:
Individually evaluated for impairment	53	73	53	73
Collectively evaluated for impairment	430	377	430	377
Total loans held for investment, gross	$ 483	$ 450	$ 483	$ 450
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	5.59%	6.89%	5.59%	6.89%
Consumer loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of the period	$ 6	$ 8	$ 6	$ 7
Provision (recovery) for loan losses	3	(1)	3	0
Recoveries	1	0	2	0
Charge-offs	(2)	0	(3)	0
Balance, end of the period	8	7	8	7
Allowance for loan losses:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	8	7	8	7	$ 6
Loans held for investment:
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	133	130	133	130
Total loans held for investment, gross	$ 133	$ 130	$ 133	$ 130
Allowance for loan losses as a percentage of gross loans held for investment at the end of the period	6.02%	5.38%	6.02%	5.38%

Represents amount of allowance for loan losses as a percentage of gross loans-held for investment.

No definition available.

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- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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

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The balance of financing receivables 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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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount of expense related to estimated loss from loan and lease transactions.

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