Nature of Business and Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Nature of Business and Summary of Significant Accounting Policies
Basic EPS	$ 3,233	$ 1,504
Weighted Average Shares, Basic EPS	18,478,000	18,726,000
Stock Options	58,000	50,000
Diluted EPS	$ 3,233	$ 1,504
Weighted Average Shares, Diluted EPS	18,536,000	18,776,000
Net Income Per Share, Basic	$ 0.17	$ 0.08
Net Income Per Share, Diluted	$ 0.17	$ 0.08