SEGMENT INFORMATION - EMPLOYEE STOCK-BASED COMPENSATION EXPENSE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	$ 1,567	$ 344	$ 2,214	$ 1,364
Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	47	3	60	8
Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	1,520	341	2,154	1,356
Phase I
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Phase I | Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Phase I | Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Phase II
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Phase II | Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Phase II | Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	38	5	50	9
Services | Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	28	3	36	6
Services | Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	10	2	14	3
Content & Entertainment
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	613	88	841	183
Content & Entertainment | Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	19	0	24	2
Content & Entertainment | Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	594	88	817	181
Corporate
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	916	251	1,323	1,172
Corporate | Direct operating
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	0	0	0	0
Corporate | Selling, general and administrative
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total stock-based compensation	$ 916	$ 251	$ 1,323	$ 1,172