Investment Securities - Schedule of amortized cost and estimated fair value of Available for sale securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Available for sale
Amortized Cost	$ 3,494	$ 4,583
Gross Unrealized Gains	93	141
Gross Unrealized (Losses)	0	(7)
Estimated Fair Value	3,587	4,717
Carrying value	3,587	4,717
U.S. government agency MBS
Available for sale
Amortized Cost	2,146	2,823
Gross Unrealized Gains	76	120
Gross Unrealized (Losses)	0	0
Estimated Fair Value	2,222	2,943
Carrying value	2,222	2,943
U.S. government sponsored enterprise MBS
Available for sale
Amortized Cost	1,197	1,556
Gross Unrealized Gains	14	21
Gross Unrealized (Losses)	0	0
Estimated Fair Value	1,211	1,577
Carrying value	1,211	1,577
Private issue CMO
Available for sale
Amortized Cost	151	204
Gross Unrealized Gains	3	0
Gross Unrealized (Losses)	0	(7)
Estimated Fair Value	154	197
Carrying value	$ 154	$ 197

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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