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Note 3 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue from Contract with Customer, Including Assessed Tax		$ 307,142	$ 728,383	$ 829,627	$ 1,280,006
Service [Member]
Revenue from Contract with Customer, Including Assessed Tax		229,503	231,993	437,026	473,603
License [Member]
Revenue from Contract with Customer, Including Assessed Tax		23,542	60,300	258,887	143,508
Hardware [Member]
Revenue from Contract with Customer, Including Assessed Tax		54,097	436,090	133,714	662,895
North America [Member]
Revenue from Contract with Customer, Including Assessed Tax		281,715	357,829	699,620	614,094
North America [Member] | Service [Member]
Revenue from Contract with Customer, Including Assessed Tax		209,846	200,613	406,162	396,688
North America [Member] | License [Member]
Revenue from Contract with Customer, Including Assessed Tax		23,542	32,800	188,777	47,008
North America [Member] | Hardware [Member]
Revenue from Contract with Customer, Including Assessed Tax		48,327	124,416	104,681	170,398
South America [Member]
Revenue from Contract with Customer, Including Assessed Tax		375	17,527	750	20,043
South America [Member] | Service [Member]
Revenue from Contract with Customer, Including Assessed Tax		375	5,291	750	7,407
South America [Member] | License [Member]
Revenue from Contract with Customer, Including Assessed Tax
South America [Member] | Hardware [Member]
Revenue from Contract with Customer, Including Assessed Tax			12,236		12,636
EMEA [Member]
Revenue from Contract with Customer, Including Assessed Tax	[1]	10,934	344,716	14,701	414,052
EMEA [Member] | Service [Member]
Revenue from Contract with Customer, Including Assessed Tax		10,934	22,589	14,701	59,007
EMEA [Member] | License [Member]
Revenue from Contract with Customer, Including Assessed Tax	[1]		27,500		27,500
EMEA [Member] | Hardware [Member]
Revenue from Contract with Customer, Including Assessed Tax	[1]		294,627		327,545
Asia [Member]
Revenue from Contract with Customer, Including Assessed Tax		14,118	8,311	114,556	231,817
Asia [Member] | Service [Member]
Revenue from Contract with Customer, Including Assessed Tax		8,348	3,500	15,413	10,501
Asia [Member] | License [Member]
Revenue from Contract with Customer, Including Assessed Tax				70,110	69,000
Asia [Member] | Hardware [Member]
Revenue from Contract with Customer, Including Assessed Tax		$ 5,770	$ 4,811	$ 29,033	$ 152,316
[1] EMEA - Europe, Middle East, Africa

X

- 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
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045

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=120311839&loc=d3e9054-108599

Reference 10: 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=120311839&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

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