Stockholders' Equity (Schedule of Reconciliation of Numerators and Denominators of Basic and Diluted Per Share Computations) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net Income	$ 1,140,809	$ 922,456	$ 217,758	$ 61,671	$ 700,398	$ 317,764	$ 1,614,871	$ 442,764	$ 2,342,694	$ 3,075,797
Basic EPS:
Balance, beginning, shares				2,387,124				2,371,321	2,387,124	2,371,321
Unearned ESOP shares									(29,166)	(45,000)
Weighted average common shares issued during the period									9,708	4,685
Weighted average common shares purchased during the period									(362)	(3,075)
Weighted average ESOP shares earned during the period									5,641	5,954
Denominator for basic earnings per common shares - Weighted average common shares									2,372,945	2,333,885
Diluted EPS:
Weighted average dilutive effect of stock options									16,283	14,422
Denominator for diluted earnings per common shares - Weighted average common shares									2,389,228	2,348,307