Loans and Allowance for Loan Losses - Changes In Allowance (Details) - USD ($)	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	$ 1,353,427	$ 1,293,965
Charge-offs	(91,485)	(102,729)
Recoveries	547	27,191
Provision	150,000	135,000
Balance at Ending	1,412,489	1,353,427
Allowance
Ending balance individually evaluated for impairment	88,759	205,923
Ending balance collectively evaluated for impairment	1,323,730	1,147,504
Ending balance	1,412,489	1,353,427
Loans
Ending balance individually evaluated for impairment	793,141	1,341,174
Ending balance collectively evaluated for impairment	216,039,299	237,312,731
Total loans	216,832,440	238,653,905
Less allowance	1,412,489	1,353,427
Total	215,419,951	237,300,478
Construction, Land, Development
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	13,795	4,319
Charge-offs	0	0
Recoveries	0	0
Provision	(2,732)	9,476
Balance at Ending	11,063	13,795
Allowance
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	11,063	13,795
Ending balance	11,063	13,795
Loans
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	2,458,461	4,598,382
Total loans	2,458,461	4,598,382
Less allowance	11,063	13,795
Total	2,447,398	4,584,587
Residential | 1-4 Family Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	356,434	67,593
Charge-offs	(61,491)	(57,572)
Recoveries	0	5,155
Provision	31,465	341,258
Balance at Ending	326,408	356,434
Allowance
Ending balance individually evaluated for impairment	0	64,780
Ending balance collectively evaluated for impairment	326,408	291,654
Ending balance	326,408	356,434
Loans
Ending balance individually evaluated for impairment	587,476	965,734
Ending balance collectively evaluated for impairment	71,424,094	99,540,577
Total loans	72,011,570	100,506,311
Less allowance	326,408	356,434
Total	71,685,162	100,149,877
Residential | 1-4 Family Non-Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	77,220	26,630
Charge-offs	0	0
Recoveries	0	0
Provision	38,425	50,590
Balance at Ending	115,645	77,220
Allowance
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	115,645	77,220
Ending balance	115,645	77,220
Loans
Ending balance individually evaluated for impairment	0	57,574
Ending balance collectively evaluated for impairment	22,368,557	21,156,106
Total loans	22,368,557	21,213,680
Less allowance	115,645	77,220
Total	22,252,912	21,136,460
Residential | Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	286,665	109,870
Charge-offs	0	0
Recoveries	0	0
Provision	172,717	176,795
Balance at Ending	459,382	286,665
Allowance
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	459,382	286,665
Ending balance	459,382	286,665
Loans
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	91,876,323	76,444,156
Total loans	91,876,323	76,444,156
Less allowance	459,382	286,665
Total	91,416,941	76,157,491
Commercial | Commercial Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	95,711	61,193
Charge-offs	0	0
Recoveries	0	0
Provision	4,140	34,518
Balance at Ending	99,851	95,711
Allowance
Ending balance individually evaluated for impairment	65,626	79,351
Ending balance collectively evaluated for impairment	34,225	16,360
Ending balance	99,851	95,711
Loans
Ending balance individually evaluated for impairment	182,532	189,249
Ending balance collectively evaluated for impairment	6,222,694	6,543,934
Total loans	6,405,226	6,733,183
Less allowance	99,851	95,711
Total	6,305,375	6,637,472
Commercial | Commercial Non-Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	312,670	738,366
Charge-offs	0	0
Recoveries	0	0
Provision	(82,211)	(425,696)
Balance at Ending	230,459	312,670
Allowance
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	230,459	312,670
Ending balance	230,459	312,670
Loans
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	14,182,106	20,237,534
Total loans	14,182,106	20,237,534
Less allowance	230,459	312,670
Total	13,951,647	19,924,864
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	97,312	70,058
Charge-offs	(29,994)	(45,157)
Recoveries	547	22,036
Provision	(1,342)	50,375
Balance at Ending	66,523	97,312
Allowance
Ending balance individually evaluated for impairment	23,133	61,792
Ending balance collectively evaluated for impairment	43,390	35,520
Ending balance	66,523	97,312
Loans
Ending balance individually evaluated for impairment	23,133	128,617
Ending balance collectively evaluated for impairment	7,507,064	8,792,042
Total loans	7,530,197	8,920,659
Less allowance	66,523	97,312
Total	7,463,674	8,823,347
Not Specifically Allocated
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	113,620	215,936
Charge-offs	0	0
Recoveries	0	0
Provision	(10,462)	(102,316)
Balance at Ending	103,158	113,620
Allowance
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	103,158	113,620
Ending balance	103,158	113,620
Loans
Ending balance individually evaluated for impairment	0	0
Ending balance collectively evaluated for impairment	0	0
Total loans	0	0
Less allowance	103,158	113,620
Total	$ (103,158)	$ (113,620)