Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Antidilutive securities or contracts outstanding (in shares)	0	0	0	0
Net Income	$ 3,677	$ 2,897	$ 10,789	$ 8,330
Weighted Average Shares - Basic (in shares)	8,517,614	8,502,614	8,508,103	8,492,501
Effect of Dilutive Stock Options (in shares)	18,793	16,762	25,747	17,251
Weighted Average Shares - Dilute (in shares)	8,536,407	8,519,376	8,533,850	8,509,752
Earnings per share - Basic (in dollars per share)	$ 0.43	$ 0.34	$ 1.27	$ 0.98
Earnings per share - Diluted (in dollars per share)	$ 0.43	$ 0.34	$ 1.26	$ 0.98