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Revenue Recognition - Schedule of Revenues Disaggregated by Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Total revenues	$ 4,440	$ 3,912
Product Sales [Member]
Total revenues	724	725
Software License, Maintenance and Support Services Revenue [Member]
Total revenues	141	143
Software-Related Consulting Service Revenue [Member]
Total revenues	312	241
Verification and Certification Segment [Member]
Total revenues	3,987	3,528
Verification and Certification Segment [Member] | Verification and Certification Service Revenue [Member]
Total revenues	3,263	2,803
Verification and Certification Segment [Member] | Product Sales [Member]
Total revenues	724	725
Verification and Certification Segment [Member] | Software License, Maintenance and Support Services Revenue [Member]
Total revenues
Verification and Certification Segment [Member] | Software-Related Consulting Service Revenue [Member]
Total revenues
Software Sales and Related Consulting Segment [Member]
Total revenues	453	498
Software Sales and Related Consulting Segment [Member] | Verification and Certification Service Revenue [Member]
Total revenues
Software Sales and Related Consulting Segment [Member] | Product Sales [Member]
Total revenues
Software Sales and Related Consulting Segment [Member] | Software License, Maintenance and Support Services Revenue [Member]
Total revenues	141	233
Software Sales and Related Consulting Segment [Member] | Software-Related Consulting Service Revenue [Member]
Total revenues	312	265
Eliminations and Other [Member]
Total revenues		(114)
Eliminations and Other [Member] | Verification and Certification Service Revenue [Member]
Total revenues
Eliminations and Other [Member] | Product Sales [Member]
Total revenues
Eliminations and Other [Member] | Software License, Maintenance and Support Services Revenue [Member]
Total revenues		(90)
Eliminations and Other [Member] | Software-Related Consulting Service Revenue [Member]
Total revenues		(24)
Consolidated [Member]
Total revenues	4,440	3,912
Consolidated [Member] | Verification and Certification Service Revenue [Member]
Total revenues	3,263	2,803
Consolidated [Member] | Product Sales [Member]
Total revenues	724	725
Consolidated [Member] | Software License, Maintenance and Support Services Revenue [Member]
Total revenues	141	143
Consolidated [Member] | Software-Related Consulting Service Revenue [Member]
Total revenues	$ 312	$ 241

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 280
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-Section 50
-Paragraph 32
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 280
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-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
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-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

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