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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Schedule of Revenue Attributable to Each of Our Identified Revenue Categories | Revenue attributable to each of our identified revenue categories is disaggregated in the table below (amounts in thousands).
|  | Year ended December 31, 2020 |  |  | Year ended December 31, 2019 |
|  | Verification and Certification Segment |  |  | Software Sales and Related Consulting Segment |  |  | Eliminations and Other |  |  | Consolidated Totals |  |  | Verification and Certification Segment |  |  | Software Sales and Related Consulting Segment |  |  | Eliminations and Other |  |  | Consolidated Totals |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Verification and certification service revenue |  | $ | 14,254 |  |  | $ | - |  |  | $ | - |  |  | $ | 14,254 |  |  | $ | 15,564 |  |  | $ | - |  |  | $ | - |  |  | $ | 15,564 |
Product sales |  |  | 3,859 |  |  |  | - |  |  |  | - |  |  |  | 3,859 |  |  |  | 3,300 |  |  |  | - |  |  |  | - |  |  |  | 3,300 |
Software license, maintenance and support services revenue |  |  | - |  |  |  | 957 |  |  |  | (90 | ) |  |  | 867 |  |  |  | - |  |  |  | 1,274 |  |  |  | (207 | ) |  |  | 1,067 |
Software-related consulting service revenue |  |  | - |  |  |  | 1,120 |  |  |  | (24 | ) |  |  | 1,096 |  |  |  | - |  |  |  | 948 |  |  |  | (105 | ) |  |  | 843 |
Total revenues |  | $ | 18,113 |  |  | $ | 2,077 |  |  | $ | (114 | ) |  | $ | 20,076 |  |  | $ | 18,864 |  |  | $ | 2,222 |  |  | $ | (312 | ) |  | $ | 20,774 |
Schedule of Changes in Contract Liabilities | The following table reflects the changes in our contract liabilities during the year ended December 31, 2020 and 2019:
Deferred revenue (in thousands): |  | 2020 |  |  | 2019 |
Deferred revenue January 1 |  | $ | 797 |  |  | $ | 655 |
Unearned billings |  |  | 3,163 |  |  |  | 2,684 |
Revenue recognized |  |  | (2,828 | ) |  |  | (2,542 | )
Deferred revenue December 31 |  | $ | 1,132 |  |  | $ | 797 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045 + Details
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