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Note B - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Revenue |  | $ 4,044,542 |  | $ 6,302,984
North America [Member] |  |  |  |
Revenue |  | 1,679,521 |  | 5,440,161
South America [Member] |  |  |  |
Revenue |  | 85,865 |  | 5,288
EMEA [Member] |  |  |  |
Revenue | [1] | 819,010 |  | 50,438
Asia [Member] |  |  |  |
Revenue |  | 1,460,146 |  | 807,097
License [Member] |  |  |  |
Revenue |  | 1,739,897 |  | 3,220,371
License [Member] | North America [Member] |  |  |  |
Revenue |  | 318,271 |  | 3,104,509
License [Member] | South America [Member] |  |  |  |
Revenue |  | 32,000 |  | 583
License [Member] | EMEA [Member] |  |  |  |
Revenue |  | 278,516 | [1] | 4,279
License [Member] | Asia [Member] |  |  |  |
Revenue |  | 1,111,110 |  | 111,000
Hardware [Member] |  |  |  |
Revenue |  | 1,292,069 |  | 1,889,423
Hardware [Member] | North America [Member] |  |  |  |
Revenue |  | 439,480 |  | 1,190,500
Hardware [Member] | South America [Member] |  |  |  |
Revenue |  | 53,200 |  | 2,341
Hardware [Member] | EMEA [Member] |  |  |  |
Revenue | [1] | 477,674 |  | 8,252
Hardware [Member] | Asia [Member] |  |  |  |
Revenue |  | 321,715 |  | 688,330
Maintenance [Member] |  |  |  |
Revenue |  | 894,606 |  | 500,978
Maintenance [Member] | North America [Member] |  |  |  |
Revenue |  | 805,800 |  | 458,340
Maintenance [Member] | South America [Member] |  |  |  |
Revenue |  | 665 |  | 2,364
Maintenance [Member] | EMEA [Member] |  |  |  |
Revenue | [1] | 60,820 |  | 37,907
Maintenance [Member] | Asia [Member] |  |  |  |
Revenue |  | 27,321 |  | 2,367
Professional Services [Member] |  |  |  |
Revenue |  | 117,970 |  | 692,212
Professional Services [Member] | North America [Member] |  |  |  |
Revenue |  | 115,970 |  | 686,812
Professional Services [Member] | South America [Member] |  |  |  |
Revenue |  |  |  |
Professional Services [Member] | EMEA [Member] |  |  |  |
Revenue |  | 2,000 | [1] |
Professional Services [Member] | Asia [Member] |  |  |  |
Revenue |  |  |  | $ 5,400
[1] | EMEA - Europe, Middle East, Africa

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045 + Details
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