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Note 3 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Revenue from Contract with Customer, Including Assessed Tax |  | $ 1,298,829 | $ 943,325 | $ 4,179,557 | $ 1,772,952
North America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 879,185 | 894,252 | 2,375,535 | 1,593,872
South America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 363,425 | 0 | 1,297,748 | 0
EMEA [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 33,437 | 45,225 | 379,310 | 60,676
Asia [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 22,782 | 3,848 | 126,964 | 118,404
License [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 870,459 | 346,479 | 2,011,610 | 605,366
License [Member] | North America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 534,775 | 339,747 | 1,307,265 | 528,524
License [Member] | South America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 308,000 | 0 | 557,484 | 0
License [Member] | EMEA [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 20,678 | 6,732 | 72,205 | 6,732
License [Member] | Asia [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 7,006 | 0 | 74,656 | 70,110
Hardware [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 109,870 | 105,311 | 1,182,784 | 239,025
Hardware [Member] | North America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 84,445 | 103,511 | 176,414 | 208,192
Hardware [Member] | South America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 13,425 | 0 | 698,264 | 0
Hardware [Member] | EMEA [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | [1] | 0 | 1,800 | 265,996 | 1,800
Hardware [Member] | Asia [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 12,000 | 0 | 42,110 | 29,033
Service [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 318,500 | 491,535 | 985,163 | 928,561
Service [Member] | North America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 259,965 | 450,994 | 891,856 | 857,156
Service [Member] | South America [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 42,000 | 0 | 42,000 | 0
Service [Member] | EMEA [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | 12,759 | 36,693 | 41,109 | 52,144
Service [Member] | Asia [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax |  | $ 3,776 | $ 3,848 | $ 10,198 | $ 19,261
[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 http://asc.fasb.org/extlink&oid=123359005&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 http://asc.fasb.org/extlink&oid=123351226&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 http://asc.fasb.org/extlink&oid=123359005&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 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 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&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 http://asc.fasb.org/extlink&oid=123359005&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 http://asc.fasb.org/extlink&oid=123359005&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 http://asc.fasb.org/extlink&oid=123351226&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 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 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&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 http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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