Other Interests (Details) - USD ($)	3 Months Ended			6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2016	Jul. 01, 2015
Noncontrolling Interest [Line Items]
Accounts receivable service equity investment	$ 400,000			$ 400,000		$ 400,000
Management fees revenue	300,000	$ 300,000		600,000	$ 600,000
Deficit attributable to noncontrolling interest	(1,183,000)			(1,183,000)		(1,185,000)
Holdings
Noncontrolling Interest [Line Items]
Ownership percentage			100.00%
Equity method investment aggregate cost	2,000,000			2,000,000
Holdings | Variable Interest Entity, Not Primary Beneficiary
Noncontrolling Interest [Line Items]
Equity method investment equity	15,400,000			15,400,000		11,900,000
Equity method investment	0			0		$ 0
CONtv
Noncontrolling Interest [Line Items]
Ownership percentage			47.50%				85.00%
Investments in subsidiary	$ 0			$ 38,000