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Other Interests (Details) - USD ($)
3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Mar. 31, 2017
Noncontrolling Interest [Line Items]      
Accounts receivable service equity investment $ 400,000   $ 400,000
Management fees revenue 300,000 $ 300,000  
Deficit attributable to noncontrolling interest $ (1,220,000)   (1,214,000)
Holdings      
Noncontrolling Interest [Line Items]      
Ownership percentage 100.00%    
Equity method investment aggregate cost $ 2,000,000    
Holdings | Variable Interest Entity, Not Primary Beneficiary      
Noncontrolling Interest [Line Items]      
Equity method investment equity 20,500,000   18,700,000
Equity method investment $ 0   $ 0
CONtv      
Noncontrolling Interest [Line Items]      
Ownership percentage 85.00%