Employee Benefit Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Employee Benefit Plan
Company matching contributions equal to each employee's contribution (as a percent)			50.00%
Maximum contribution by the company as a percentage of employee's compensation for the Plan year			4.00%
Contributions to the Plan	$ 458	$ 492	$ 1,000	$ 1,100