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Note 3 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Revenue from Contract with Customer, Including Assessed Tax |  | $ 1,941,171 | $ 1,888,638 | $ 5,114,000
North America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 900,602 | 777,209 |
South America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 544,469 | 684,839 |
EMESA [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 416,372 | 326,391 |
Asia [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 79,728 | 100,199 |
License [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 1,460,183 | 478,958 |
License [Member] | North America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 473,070 | 368,800 |
License [Member] | South America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 517,161 | 0 |
License [Member] | EMESA [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 390,277 | 42,508 |
License [Member] | Asia [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 79,675 | 67,650 |
Hardware [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 85,184 | 1,029,658 |
Hardware [Member] | North America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 71,900 | 48,795 |
Hardware [Member] | South America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 12,033 | 684,839 |
Hardware [Member] | EMESA [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 1,251 | 265,995 |
Hardware [Member] | Asia [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 0 | 30,029 |
Service [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 395,804 | 380,022 |
Service [Member] | North America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 355,632 | 359,614 |
Service [Member] | South America [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 15,275 | 0 |
Service [Member] | EMESA [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 24,844 | 17,888 |
Service [Member] | Asia [Member] |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | $ 53 | $ 2,520 |
[1] | EMESA – Europe, Middle East, South America

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- Definition Amount, including 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 41 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8906-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130543-203045 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI https://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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