Fair Value of Financial Instruments - Carrying value and fair value of financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Financial assets:
Cash and due from banks	$ 11,102	$ 21,385
Interest-bearing time deposits	1,850	2,300
Loans receivable, net	461,196	508,605
Regulatory stock	2,954	4,200
Bank-owned life insurance	35,231	14,758
Financial liabilities:
Certificates of deposit	160,303	194,480
Advances from Federal Home Loan Bank	41,000	64,892
Level 3
Financial assets:
Loans receivable, net	472,292	541,779
Financial liabilities:
Certificates of deposit	161,057	198,268
Advances from Federal Home Loan Bank	42,098	67,520
Carrying Value
Financial assets:
Loans receivable, net	461,196	508,605
Financial liabilities:
Certificates of deposit	160,303	194,480
Advances from Federal Home Loan Bank	41,000	64,892
Fair Value
Financial assets:
Loans receivable, net	472,292	541,779
Financial liabilities:
Certificates of deposit	161,057	198,268
Advances from Federal Home Loan Bank	$ 42,098	$ 67,520

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10))
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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

+ References

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
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The aggregate amount of certificate of deposit liabilities.

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Amount of interest bearing time deposit as on the balance sheet date.

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Amount of regulatory stock at cost as on the balance sheet date.

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