| Schedule of Disaggregation of Revenues | 
 
		
			For the Electronics & Software segment, we analyze revenue by region and product group, which is as follows for the three and nine months ended September 30, 2020 and 2019:  
		 
		
			
		 
		
			
		 
		
			
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				| 
					 
						 
				 | 
				
					 
						Electronics & Software Sales by Region 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						Three Months Ended September 30 
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				 | 
				
					 
						Nine Months Ended September 30 
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				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2020 
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				 | 
				
					 
						  
				 | 
				
					 
						2019 
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				 | 
				
					 
						2020 
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				 | 
				
					 
						  
				 | 
				
					 
						2019 
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				| 
					 
						North America 
				 | 
				
					 
						$ 
				 | 
				7,672,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				11,479,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				22,019,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				26,448,000 
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				| 
					 
						International 
				 | 
				
					 
						  
				 | 
				1,083,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,556,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				3,560,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				5,814,000 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						$ 
				 | 
				8,755,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				13,035,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				25,579,000 
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				 | 
				
					 
						$ 
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				32,262,000 
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				 | 
				
					 
						  
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				| 
					 
						 
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						Electronics & Software Sales by Product Group 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						Three Months Ended September 30 
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				 | 
				
					 
						Nine Months Ended September 30 
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				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2020 
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				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
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						2020 
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				 | 
				
					 
						2019 
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				| 
					 
						Intelligent edge solutions 
				 | 
				
					 
						$ 
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				2,990,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				5,791,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				9,368,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				10,846,000 
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				| 
					 
						Traditional products 
				 | 
				
					 
						  
				 | 
				5,765,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				7,244,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				16,211,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				21,416,000 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						$ 
				 | 
				8,755,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				13,035,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				25,579,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				32,262,000 
				 | 
			 
			
				| 
					 
						 
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				 | 
			 
		  
		
			
		 
		
			For the Services & Support segment, we analyze revenue by customer group and type, which is as follows for the three and nine months ended September 30, 2020 and 2019:
		 
		
			
		 
		
			
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				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
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						Services & Support Revenue by Customer Group 
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				| 
					 
						 
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						Three Months Ended September 30 
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						Nine Months Ended September 30 
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				| 
					 
						 
				 | 
				
					 
						  
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						2020 
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				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
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						2020 
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						2019 
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				| 
					 
						Education 
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						$ 
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				2,312,000 
				 | 
				
					 
						  
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						$ 
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				63,000 
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						$ 
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				3,031,000 
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						$ 
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				1,831,000 
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				| 
					 
						Healthcare 
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				244,000 
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				175,000 
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				674,000 
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				551,000 
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				| 
					 
						Financial and other commercial clients 
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				799,000 
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				353,000 
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				1,616,000 
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				902,000 
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				| 
					 
						CSI IT operations 
				 | 
				
					 
						  
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				175,000 
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				 | 
				
					 
						  
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				192,000 
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				 | 
				
					 
						  
				 | 
				561,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
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				658,000 
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				| 
					 
						 
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						$ 
				 | 
				3,530,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				783,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				5,882,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
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				3,942,000 
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				 | 
				
					 
						  
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				 | 
			 
		  
		
			 
		 
		
			
		 
		
			
		 
		
			
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				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
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				| 
					 
						 
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						Services & Support Revenue by Type 
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				| 
					 
						 
				 | 
				
					 
						Three Months Ended September 30 
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				 | 
				
					 
						Nine Months Ended September 30 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2020 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						2020 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
			 
			
				| 
					 
						Project & product revenue 
				 | 
				
					 
						$ 
				 | 
				2,611,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				130,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				3,498,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				2,124,000 
				 | 
			 
			
				| 
					 
						Services & support revenue 
				 | 
				
					 
						  
				 | 
				919,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				653,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				2,384,000 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,818,000 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						$ 
				 | 
				3,530,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				783,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				5,882,000 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				3,942,000 
				 | 
			 
			
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