The Company’s disaggregated revenues consisted of the following for the three months ended September 30, 2022: (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Karaoke machines and related	$ 36,418,000	$ 8,075,000	$ 67,746,000	$ 24,965,000
Revenue lending and trading activities	13,360,000	(38,869,000)	32,224,000	19,615,000
Total revenue	49,778,000	(30,794,000)	99,970,000	44,580,000
Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	4,279,000	2,350,000	10,520,000	6,042,000
Digital Currency Mining Net [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	3,874,000		11,398,000	693,000
Hotel Operations [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,513,000		12,809,000
Karaoke Machines and Related [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	17,114,000		17,114,000
Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,638,000	2,513,000	6,778,000	5,246,000
Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	34,457,000	5,037,000	59,150,000	16,724,000
Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,961,000	3,037,000	8,596,000	8,241,000
Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related			2,285,000
Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		2,940,000	6,842,000	7,731,000
Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		272,000
GWW [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		2,177,000
Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related				5,253,000
North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	29,697,000	3,126,000	49,542,000	10,503,000
Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	2,827,000	1,751,000	7,593,000	5,918,000
Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	3,894,000	2,949,000	10,611,000	7,845,000
Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		249,000		699,000
GWW [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	7,782,000	6,373,000	21,530,000	19,198,000
Revenue lending and trading activities
Total revenue	7,782,000	6,373,000	21,530,000	19,198,000
Revenue from contracts with customers				19,198,000
GWW [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	2,799,000	1,256,000	6,928,000	1,734,000
GWW [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	4,983,000		5,475,000
GWW [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,821,000	3,336,000	12,934,000	10,957,000
GWW [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,961,000	3,037,000	8,596,000	8,241,000
GWW [Member] | Healthcare Diagnostic Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related			2,285,000
GWW [Member] | Defense Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		2,940,000	6,842,000	7,731,000
GWW [Member] | Power Supply Systems [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related				5,253,000
GWW [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	2,472,000	1,415,000	5,094,000	5,444,000
GWW [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	2,288,000	1,848,000	7,007,000	5,600,000
GWW [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	3,022,000	2,949,000	9,429,000	7,845,000
GWW [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		161,000		309,000
Turn On Green [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,662,000	1,094,000	3,853,000	4,308,000
Revenue lending and trading activities
Total revenue	1,662,000	1,094,000	3,853,000	4,308,000
Turn On Green [Member] | Power Supply Units [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,480,000	1,094,000	3,592,000	4,308,000
Turn On Green [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	182,000		261,000
Turn On Green [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,662,000	1,094,000	3,853,000	4,308,000
Turn On Green [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
Turn On Green [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	1,428,000	1,103,000	3,262,000	3,600,000
Turn On Green [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	32,000	(97,000)	79,000	318,000
Turn On Green [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	202,000		512,000
Turn On Green [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		88,000		390,000
DP Lending [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	201,000	608,000	220,000	1,459,000
Revenue lending and trading activities	13,360,000	(38,869,000)	32,224,000	19,615,000
Total revenue	13,561,000	(38,261,000)	32,444,000	21,074,000
DP Lending [Member] | Digital Currency Mining Net [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related				693,000
DP Lending [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	201,000	336,000	220,000	766,000
DP Lending [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	201,000	607,000	220,000	1,459,000
DP Lending [Member] | Services Transferred Over Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
DP Lending [Member] | Digital Currency Mining [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		272,000
DP Lending [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related		$ 608,000	19,000	1,459,000
DP Lending [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	201,000		201,000
DP Lending [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
DP Lending [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
SMC [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	17,114,000		17,114,000
Revenue lending and trading activities
Total revenue	17,114,000		17,114,000
SMC [Member] | Karaoke Machines and Related [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	17,114,000		17,114,000
SMC [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	17,114,000		17,114,000
SMC [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	16,138,000		16,138,000
SMC [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	306,000		306,000
SMC [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	670,000		670,000
BNI [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	4,146,000		12,220,000
Revenue lending and trading activities
Total revenue	4,146,000		12,220,000
BNI [Member] | Digital Currency Mining Net [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	3,874,000		11,398,000
BNI [Member] | Other [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	272,000		822,000
BNI [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	4,146,000		12,220,000
BNI [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	4,146,000		12,220,000
BNI [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
BNI [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
AGREE [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,513,000		12,809,000
Revenue lending and trading activities
Total revenue	5,513,000		12,809,000
AGREE [Member] | Hotel Operations [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,513,000		12,809,000
AGREE [Member] | Goods Transferred At A Point In Time [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,513,000		12,809,000
AGREE [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related	5,513,000		12,809,000
AGREE [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related
AGREE [Member] | Middle East [Member]
Disaggregation of Revenue [Line Items]
Karaoke machines and related