Loans and Allowance for Loan Losses - Changes In Allowance (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	$ 1,286,674	$ 1,301,810	$ 1,293,965	$ 1,324,159	$ 1,324,159
Charge-offs	(50,858)	(14,045)	(58,684)	(46,745)	(60,343)
Recoveries	26,656	7,247	27,191	17,598	30,149
Provision			0	0
Balance at Ending	1,262,472	1,295,012	1,262,472	1,295,012	1,293,965
Allowance
Ending balance individually evaluated for impairment						$ 186,404	$ 103,315	$ 192,698
Ending balance collectively evaluated for impairment						1,076,068	1,190,650	1,102,314
Ending balance						1,262,472	1,293,965	1,295,012
Loans
Ending balance individually evaluated for impairment						1,112,843	1,524,868	1,318,569
Ending balance collectively evaluated for impairment						252,609,582	259,642,500	263,040,148
Total loans						253,722,425	261,167,368	264,358,717
Less allowance	1,262,472	1,295,012	1,262,472	1,295,012	1,293,965	1,262,472	1,293,965	1,295,012
Total						252,459,953	259,873,403	263,063,705
Construction, Land, Development
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	5,670	4,958	4,319	4,758	4,758
Provision	5,193	(1,738)	6,544	(1,538)	(439)
Balance at Ending	10,863	3,220	10,863	3,220	4,319
Allowance
Ending balance collectively evaluated for impairment						10,863	4,319	3,220
Ending balance						10,863	4,319	3,220
Loans
Ending balance collectively evaluated for impairment						7,242,065	4,318,845	3,220,671
Total loans						7,242,065	4,318,845	3,220,671
Less allowance	10,863	3,220	10,863	3,220	4,319	10,863	4,319	3,220
Total						7,231,202	4,314,526	3,217,451
1-4 Family Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	56,804	6,151	67,593	7,300	7,300
Charge-offs	(18,846)		(18,846)
Recoveries	4,820	6,744	5,155	16,784	28,735
Provision	57,197	12,955	46,073	1,766	31,558
Balance at Ending	99,975	25,850	99,975	25,850	67,593
Allowance
Ending balance individually evaluated for impairment						43,470	5,772	4,809
Ending balance collectively evaluated for impairment						56,505	61,821	21,041
Ending balance						99,975	67,593	25,850
Loans
Ending balance individually evaluated for impairment						813,101	1,203,256	960,572
Ending balance collectively evaluated for impairment						110,793,849	123,642,066	123,768,658
Total loans						111,606,950	124,845,322	124,729,230
Less allowance	99,975	25,850	99,975	25,850	67,593	99,975	67,593	25,850
Total						111,506,975	124,777,729	124,703,380
1-4 Family Non-Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	26,027	24,542	26,630	71,053	71,053
Charge-offs		(14,042)		(44,534)	(44,534)
Provision	(3,859)	18,034	(4,462)	2,015	111
Balance at Ending	22,168	28,534	22,168	28,534	26,630
Allowance
Ending balance collectively evaluated for impairment						22,168	26,630	28,534
Ending balance						22,168	26,630	28,534
Loans
Ending balance individually evaluated for impairment								22,993
Ending balance collectively evaluated for impairment						20,152,740	20,968,812	22,292,226
Total loans						20,152,740	20,968,812	22,315,219
Less allowance	22,168	28,534	22,168	28,534	26,630	22,168	26,630	28,534
Total						20,130,572	20,942,182	22,286,685
Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	111,112	71,120	109,870	71,101	71,101
Provision	5,788	39,984	7,030	40,003	38,769
Balance at Ending	116,900	111,104	116,900	111,104	109,870
Allowance
Ending balance collectively evaluated for impairment						116,900	109,870	111,104
Ending balance						116,900	109,870	111,104
Loans
Ending balance collectively evaluated for impairment						77,933,467	73,246,392	74,069,572
Total loans						77,933,467	73,246,392	74,069,572
Less allowance	116,900	111,104	116,900	111,104	109,870	116,900	109,870	111,104
Total						77,816,567	73,136,522	73,958,468
Commercial Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	91,077	131,113	61,193	131,906	131,906
Provision	(10,987)	3,175	18,897	2,382	(70,713)
Balance at Ending	80,090	134,288	80,090	134,288	61,193
Allowance
Ending balance individually evaluated for impairment						76,086	44,564	117,498
Ending balance collectively evaluated for impairment						4,004	16,629	16,790
Ending balance						80,090	61,193	134,288
Loans
Ending balance individually evaluated for impairment						191,014	193,601	196,135
Ending balance collectively evaluated for impairment						8,007,747	8,314,410	8,394,869
Total loans						8,198,761	8,508,011	8,591,004
Less allowance	80,090	134,288	80,090	134,288	61,193	80,090	61,193	134,288
Total						8,118,671	8,446,818	8,456,716
Commercial Non-Owner Occupied
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	773,186	905,405	738,366	925,355	925,355
Provision	36,536	(23,608)	71,356	(43,558)	(186,989)
Balance at Ending	809,722	881,797	809,722	881,797	738,366
Allowance
Ending balance collectively evaluated for impairment						809,722	738,366	881,797
Ending balance						809,722	738,366	881,797
Loans
Ending balance collectively evaluated for impairment						19,265,342	19,502,545	20,782,399
Total loans						19,265,342	19,502,545	20,782,399
Less allowance	809,722	881,797	809,722	881,797	738,366	809,722	738,366	881,797
Total						18,455,620	18,764,179	19,900,602
Consumer and Installment Loan
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	72,508	111,323	70,058	98,096	98,096
Charge-offs	(32,012)	(3)	(39,838)	(2,211)	(15,809)
Recoveries	21,836	503	22,036	814	1,414
Provision	23,682	(4,115)	33,758	11,009	(13,643)
Balance at Ending	86,014	107,708	86,014	107,708	70,058
Allowance
Ending balance individually evaluated for impairment						66,848	52,979	70,391
Ending balance collectively evaluated for impairment						19,166	17,079	37,317
Ending balance						86,014	70,058	107,708
Loans
Ending balance individually evaluated for impairment						108,728	128,011	138,869
Ending balance collectively evaluated for impairment						9,214,372	9,649,430	10,511,753
Total loans						9,323,100	9,777,441	10,650,622
Less allowance	86,014	107,708	86,014	107,708	70,058	86,014	70,058	107,708
Total						9,237,086	9,707,383	10,542,914
Not Specifically Allocated
Allowance for Loan and Lease Losses [Roll Forward]
Balance at Beginning	150,290	47,198	215,936	14,590	14,590
Provision	(113,550)	(44,687)	(179,196)	(12,079)	201,346
Balance at Ending	36,740	2,511	36,740	2,511	215,936
Allowance
Ending balance collectively evaluated for impairment						36,740	215,936	2,511
Ending balance						36,740	215,936	2,511
Loans
Less allowance	$ 36,740	$ 2,511	$ 36,740	$ 2,511	$ 215,936	36,740	215,936	2,511
Total						$ (36,740)	$ (215,936)	$ (2,511)