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Schedule of Operating Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Assets:    
Goodwill $ 2,946 $ 2,946
All other assets, net 12,447 14,356
Total assets 15,393 17,302
Revenues:    
Total revenues 5,582 5,267
Costs of revenues:    
Total costs of revenues 3,253 3,124
Gross profit 2,329 2,143
Depreciation & amortization 155 172
Other operating expenses 1,913 1,816
Segment operating income/(loss) 261 155
Other items to reconcile segment operating income (loss) to net income/(loss):    
Other income / (expense) 4 56
Income tax expense (87) (90)
Net income/(loss) 178 121
Service [Member]    
Revenues:    
Total revenues 4,434 3,806
Costs of revenues:    
Total costs of revenues 2,515 2,196
Product [Member]    
Revenues:    
Total revenues 733 971
Costs of revenues:    
Total costs of revenues 434 568
Professional Services [Member]    
Revenues:    
Total revenues 415 490
Costs of revenues:    
Total costs of revenues 304 360
Verification and Certification Segment [Member]    
Assets:    
Goodwill 1,947 1,947
All other assets, net 912 7,179
Total assets 2,859 9,126
Revenues:    
Total revenues 5,167 4,777
Costs of revenues:    
Total costs of revenues 2,949 2,764
Gross profit 2,218 2,013
Depreciation & amortization 113 130
Other operating expenses 1,843 1,746
Segment operating income/(loss) 262 137
Other items to reconcile segment operating income (loss) to net income/(loss):    
Other income / (expense) 6 57
Income tax expense
Net income/(loss) 268 194
Verification and Certification Segment [Member] | Service [Member]    
Revenues:    
Total revenues 4,434 3,806
Costs of revenues:    
Total costs of revenues 2,515 2,196
Verification and Certification Segment [Member] | Product [Member]    
Revenues:    
Total revenues 733 971
Costs of revenues:    
Total costs of revenues 434 568
Verification and Certification Segment [Member] | Professional Services [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Professional Services Segment [Member]    
Assets:    
Goodwill 999 999
All other assets, net 2,765 2,609
Total assets 3,764 3,608
Revenues:    
Total revenues 415 490
Costs of revenues:    
Total costs of revenues 304 360
Gross profit 111 130
Depreciation & amortization 42 42
Other operating expenses 70 70
Segment operating income/(loss) (1) 18
Other items to reconcile segment operating income (loss) to net income/(loss):    
Other income / (expense) (2) (1)
Income tax expense
Net income/(loss) (3) 17
Professional Services Segment [Member] | Service [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Professional Services Segment [Member] | Product [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Professional Services Segment [Member] | Professional Services [Member]    
Revenues:    
Total revenues 415 490
Costs of revenues:    
Total costs of revenues 304 360
Eliminations and Other [Member]    
Assets:    
Goodwill
All other assets, net 8,770 4,568
Total assets 8,770 4,568
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Gross profit
Depreciation & amortization
Other operating expenses
Segment operating income/(loss)
Other items to reconcile segment operating income (loss) to net income/(loss):    
Other income / (expense)
Income tax expense (87) (90)
Net income/(loss) (87) (90)
Eliminations and Other [Member] | Service [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Eliminations and Other [Member] | Product [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues
Eliminations and Other [Member] | Professional Services [Member]    
Revenues:    
Total revenues
Costs of revenues:    
Total costs of revenues