Stockholders' Equity (Details) - USD ($)	3 Months Ended	9 Months Ended
	Mar. 31, 2020	Mar. 31, 2020	Mar. 31, 2019	Feb. 01, 2019	Nov. 27, 2017
Class of Stock [Line Items]
Stock repurchase program authorized amount				$ 15,000,000	$ 5,000,000
Stock repurchase program shares repurchased (in shares)		400,000
Repurchase of company stock		$ 5,405,000	$ 1,706,000
Remaining authorized repurchase amount	$ 3,400,000	$ 3,400,000
Common Stock
Class of Stock [Line Items]
Exercise of options (in shares)	1,000	25,000
Shares canceled or surrendered as payment of tax withholding (in shares)	100,000	400,000