Segment Information (Details) - Schedule of segment reporting, assets and debt - USD ($) $ in Thousands	Dec. 31, 2020	Mar. 31, 2020
Segment Information (Details) - Schedule of segment reporting, assets and debt [Line Items]
Intangible Assets, net	$ 8,039	$ 6,924
Goodwill	8,701	8,701
Total Assets	91,689	110,440
Notes Payable, Non-Recourse	11,153	11,442
Notes Payable	11,890	37,249
Operating lease liabilities	134	1,277
Cinema Equipment Business [Member]
Segment Information (Details) - Schedule of segment reporting, assets and debt [Line Items]
Intangible Assets, net		23
Goodwill
Total Assets	17,160	34,465
Notes Payable, Non-Recourse	11,153	11,442
Notes Payable
Operating lease liabilities		594
Content & Entertainment Business [Member]
Segment Information (Details) - Schedule of segment reporting, assets and debt [Line Items]
Intangible Assets, net	8,036	6,895
Goodwill	8,701	8,701
Total Assets	48,868	49,923
Notes Payable, Non-Recourse
Notes Payable
Operating lease liabilities	98	73
Corporate [Member]
Segment Information (Details) - Schedule of segment reporting, assets and debt [Line Items]
Intangible Assets, net	3	6
Goodwill
Total Assets	25,661	26,052
Notes Payable, Non-Recourse
Notes Payable	11,890	37,249
Operating lease liabilities	$ 36	$ 610