SEGMENT INFORMATION - ASSETS and DEBT (Details)	9 Months Ended
	Dec. 31, 2016 USD ($) system segments systems	Mar. 31, 2016 USD ($)
Segment Reporting, Asset Reconciling Item [Line Items]
Number of reportable segments | segments	4
Number of systems that have ceased to earn VPF | system	1,892
Total intangible assets, net	$ 21,623,000	$ 25,940,000
Total goodwill	8,701,000	8,701,000
Assets from continuing operations	177,116,000	209,398,000
Notes payable, non-recourse	71,909,000	112,312,000
Current portion of notes payable	84,518,000	86,938,000
Capital leases	$ 96,000	4,225,000
Phase I
Segment Reporting, Asset Reconciling Item [Line Items]
Number of systems installed | systems	3,724
Phase I | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	$ 172,000	206,000
Total goodwill	0	0
Assets from continuing operations	21,759,000	48,292,000
Notes payable, non-recourse	59,616,000	93,372,000
Current portion of notes payable	0	0
Capital leases	$ 0	0
Phase II
Segment Reporting, Asset Reconciling Item [Line Items]
Number of systems installed | systems	8,904
Phase II | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	$ 0	0
Total goodwill	0	0
Assets from continuing operations	51,151,000	53,727,000
Notes payable, non-recourse	12,293,000	18,940,000
Current portion of notes payable	0	0
Capital leases	0	0
Services | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	0	0
Total goodwill	0	0
Assets from continuing operations	982,000	1,064,000
Notes payable, non-recourse	0	0
Current portion of notes payable	0	0
Capital leases	0	0
Content & Entertainment | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	21,440,000	25,721,000
Total goodwill	8,701,000	8,701,000
Assets from continuing operations	96,290,000	87,344,000
Notes payable, non-recourse	0	0
Current portion of notes payable	0	0
Capital leases	13,000	30,000
Corporate | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	11,000	13,000
Total goodwill	0	0
Assets from continuing operations	6,934,000	18,971,000
Notes payable, non-recourse	0	0
Current portion of notes payable	84,518,000	86,938,000
Capital leases	$ 83,000	$ 4,195,000