Stockholders' Equity (Details) - USD ($)	3 Months Ended	6 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Nov. 27, 2017
Class of Stock [Line Items]
Stock repurchase program authorized amount				$ 5,000,000
Stock repurchase program shares repurchased (in shares)		45,107
Shares repurchased amount		$ 250,000	$ 0
Remaining authorized repurchase amount	$ 4,800,000	$ 4,800,000
Common Stock
Class of Stock [Line Items]
Issuance of shares related to restricted stock (in shares)	30,000	30,000
Issuance of shares related to common stock (in shares)	0	0
Shares canceled or surrendered as payment of tax withholding (in shares)	2,000	6,000