| Schedule of Disaggregation of Revenues | 
 
		
			For the Electronics & Software segment, we analyze revenue by region and product group, which is as follows for the years ended December 31, 2020 and 2019:  
		 
		
			
		 
		
			
		 
		
			
		 
		
			
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						Electronics & Software Revenue by Region 
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						2020 
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						2019 
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						North America 
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						$ 
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				29,721,000 
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						$ 
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				39,771,000 
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						International 
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				4,775,000 
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				7,236,000 
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						$ 
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				34,496,000 
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						$ 
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				47,007,000 
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						Electronics & Software Revenue by Product Group 
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						2020 
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						2019 
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				| 
					 
						Intelligent edge solutions 
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						$ 
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				12,162,000 
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						$ 
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				18,442,000 
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				| 
					 
						Traditional products 
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				22,334,000 
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				28,565,000 
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						$ 
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				34,496,000 
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						$ 
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				47,007,000 
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			For the Services & Support segment, we analyze revenue by customer group and type, which is as follows for the years ended December 31, 2020 and 2019:
		 
		
			
		 
		
			
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						Services & Support Revenue by Customer Group 
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						2020 
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						2019 
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						Education 
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						$ 
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				4,483,000 
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						$ 
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				1,926,000 
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						Healthcare 
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				887,000 
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				705,000 
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				| 
					 
						Financial and other commercial clients 
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				2,708,000 
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				1,268,000 
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				| 
					 
						CSI IT operations 
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				699,000 
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				842,000 
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						$ 
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				8,777,000 
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						$ 
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				4,741,000 
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						Services & Support Revenue by Type 
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						2020 
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						2019 
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						Project & product revenue 
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						$ 
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				5,120,000 
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						$ 
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				2,242,000 
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				| 
					 
						Services & support revenue 
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				3,657,000 
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				 | 
				
					 
						  
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				2,499,000 
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						$ 
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				8,777,000 
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						$ 
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				4,741,000 
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