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Discontinued Operations - Additional Information (Details) - USD ($)
12 Months Ended
Jun. 30, 2018
Jun. 30, 2019
Oct. 13, 2017
Disposal Group, Including Discontinued Operation, Consideration $ 29,000,000    
Escrow Deposit 1,400,000 $ 0  
Disposal Group, Including Discontinued Operation, Consideration Adjustment for Working Capital 812,000    
Content Delivery Segment [Member]      
Disposal Group, Including Discontinued Operation, Consideration 29,812,000   $ 29,000,000
Proceeds from Divestiture of Businesses 28,362,000    
Escrow Deposit 1,450,000    
Disposal Group, Including Discontinued Operation, Consideration Adjustment for Working Capital 812,000    
Content Delivery Segment [Member] | General and Administrative Expense [Member]      
Payments to Employees $ 479,000    
Performance Stock Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 50,000    
Chief Executive Officer [Member] | Content Delivery Segment [Member] | General and Administrative Expense [Member]      
Severance Costs $ 544,000    
Executive Officer [Member] | Content Delivery Segment [Member] | General and Administrative Expense [Member]      
Severance Costs $ 132,000