Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Narrative) (Details)

v3.7.0.1
Commitments and Contingencies (Narrative) (Details)
$ in Millions
12 Months Ended
Jun. 30, 2017
USD ($)
ft²
$ / ft²
Jun. 30, 2016
USD ($)
Operating Leased Assets [Line Items]    
Rent expense | $ $ 0.8 $ 0.7
Maximum annual contributions per employee, percent 90.00%  
Employer matching contribution, percent of match, percentage 30.00%  
Employer matching contribution, percent of employees' gross pay, percentage 60.00%  
Employer contribution | $ $ 0.1 $ 0.1
El Segundo, California    
Operating Leased Assets [Line Items]    
Area under lease | ft² 9,000  
Rent expense (usd per sqft) | $ / ft² 3.60  
Term of lease (in years) 9 years  
Annual increase, percentage 3.00%  
Las Vegas, Nevada    
Operating Leased Assets [Line Items]    
Area under lease | ft² 17,600  
Rent expense (usd per sqft) | $ / ft² 1.50  
Term of lease (in years) 5 years  
Annual increase, percentage 3.00%