Segment Information (Details) - Schedule of segment reporting, statement of operations - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 15,015	$ 6,018
Direct operating (exclusive of depreciation and amortization shown below)	4,631	2,679
Selling, general and administrative	6,043	3,840
Allocation of corporate overhead
Provision for doubtful accounts	71
Depreciation and amortization of property and equipment	649	1,524
Amortization of intangible assets	847	590
Total operating expenses	12,241	8,633
Income (loss) from operations	2,774	(2,615)
Cinema Equipment Business [Member]
Segment Reporting Information [Line Items]
Revenues	6,231	605
Direct operating (exclusive of depreciation and amortization shown below)	257	182
Selling, general and administrative	429	549
Allocation of corporate overhead	99	124
Provision for doubtful accounts	27
Depreciation and amortization of property and equipment	507	1,403
Amortization of intangible assets		8
Total operating expenses	1,319	2,266
Income (loss) from operations	4,912	(1,661)
Content & Entertainment Business [Member]
Segment Reporting Information [Line Items]
Revenues	8,784	5,413
Direct operating (exclusive of depreciation and amortization shown below)	4,374	2,497
Selling, general and administrative	2,818	1,895
Allocation of corporate overhead	660	784
Provision for doubtful accounts	44
Depreciation and amortization of property and equipment	143	103
Amortization of intangible assets	845	582
Total operating expenses	8,884	5,861
Income (loss) from operations	(100)	(488)
Corporate [Member]
Segment Reporting Information [Line Items]
Revenues
Direct operating (exclusive of depreciation and amortization shown below)
Selling, general and administrative	2,796	1,396
Allocation of corporate overhead	(759)	(908)
Provision for doubtful accounts
Depreciation and amortization of property and equipment	(1)	18
Amortization of intangible assets	1
Total operating expenses	2,037	506
Income (loss) from operations	$ (2,037)	$ (506)