SEGMENT INFORMATION - ASSETS and DEBT (Details)	3 Months Ended
	Jun. 30, 2017 USD ($) segments system systems	Mar. 31, 2017 USD ($)
Segment Reporting, Asset Reconciling Item [Line Items]
Number of reportable segments | segments	4
Number of systems that have ceased to earn VPF | system	2,837
Total intangible assets, net	$ 18,833,000	$ 20,227,000
Total goodwill	8,701,000	8,701,000
Assets from continuing operations	128,210,000	151,334,000
Notes payable, non-recourse	54,262,000	61,104,000
Current portion of notes payable	79,607,000	78,995,000
Capital leases	$ 36,000	66,000
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	$ 149,000	160,000
Total goodwill	0	0
Assets from continuing operations	11,147,000	15,118,000
Notes payable, non-recourse	46,589,000	51,955,000
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	45,523,000	48,461,000
Notes payable, non-recourse	7,673,000	9,149,000
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	1,050,000	1,052,000
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	18,675,000	20,057,000
Total goodwill	8,701,000	8,701,000
Assets from continuing operations	63,241,000	79,911,000
Notes payable, non-recourse	0	0
Current portion of notes payable	0	0
Capital leases	2,000	8,000
Corporate | Segment, Continuing Operations
Segment Reporting, Asset Reconciling Item [Line Items]
Total intangible assets, net	9,000	10,000
Total goodwill	0	0
Assets from continuing operations	7,249,000	6,792,000
Notes payable, non-recourse	0	0
Current portion of notes payable	79,607,000	78,995,000
Capital leases	$ 34,000	$ 58,000