Segment Information (Details) - Schedule of segment reporting, statement of operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 10,103	$ 7,182	$ 25,118	$ 13,200
Direct operating (exclusive of depreciation and amortization shown below)	3,333	4,330	7,964	7,009
Selling, general and administrative	7,159	6,168	13,202	10,008
Allocation of corporate overhead
Provision for (recovery of) doubtful accounts	(111)	(193)	(40)	(193)
Depreciation and amortization of property and equipment	440	1,345	1,089	2,869
Amortization of intangible assets	696	591	1,543	1,181
Total operating expenses	11,517	12,241	23,758	20,874
Income (loss) from operations	(1,414)	(5,059)	1,360	(7,674)
Cinema Equipment Business [Member]
Segment Reporting Information [Line Items]
Revenues	3,253	643	9,484	1,248
Direct operating (exclusive of depreciation and amortization shown below)	164	172	421	354
Selling, general and administrative	431	631	860	1,180
Allocation of corporate overhead	170	171	269	295
Provision for (recovery of) doubtful accounts	(130)	(193)	(103)	(193)
Depreciation and amortization of property and equipment	300	1,239	805	2,642
Amortization of intangible assets		7		15
Total operating expenses	935	2,027	2,252	4,293
Income (loss) from operations	2,318	(1,384)	7,232	(3,045)
Content & Entertainment Business [Member]
Segment Reporting Information [Line Items]
Revenues	6,850	6,539	15,634	11,952
Direct operating (exclusive of depreciation and amortization shown below)	3,169	4,158	7,543	6,655
Selling, general and administrative	3,480	2,528	6,298	4,423
Allocation of corporate overhead	1,139	1,135	1,799	1,919
Provision for (recovery of) doubtful accounts	19		63
Depreciation and amortization of property and equipment	140	101	284	204
Amortization of intangible assets	696	582	1,543	1,164
Total operating expenses	8,643	8,504	17,530	14,365
Income (loss) from operations	(1,793)	(1,965)	(1,896)	(2,413)
Corporate [Member]
Segment Reporting Information [Line Items]
Revenues
Direct operating (exclusive of depreciation and amortization shown below)
Selling, general and administrative	3,248	3,009	6,044	4,405
Allocation of corporate overhead	(1,309)	(1,306)	(2,068)	(2,214)
Provision for (recovery of) doubtful accounts
Depreciation and amortization of property and equipment		5		23
Amortization of intangible assets		2		2
Total operating expenses	1,939	1,710	3,976	2,216
Income (loss) from operations	$ (1,939)	$ (1,710)	$ (3,976)	$ (2,216)