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Note 3 - Revenue From Contracts With Customers - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenue		$ 551,623	$ 841,455
North America [Member]
Revenue		256,265	440,325
South America [Member]
Revenue		2,516
EMEA [Member]
Revenue	[1]	69,336	265,239
Asia [Member]
Revenue		223,506	135,891
License [Member]
Revenue		83,208	102,719
License [Member] | North America [Member]
Revenue		14,208	60,969
License [Member] | South America [Member]
Revenue
License [Member] | EMEA [Member]
Revenue	[1]		41,750
License [Member] | Asia [Member]
Revenue		69,000
Hardware [Member]
Revenue		226,805	436,287
Hardware [Member] | North America [Member]
Revenue		45,981	99,590
Hardware [Member] | South America [Member]
Revenue		400
Hardware [Member] | EMEA [Member]
Revenue	[1]	32,918	214,776
Hardware [Member] | Asia [Member]
Revenue		147,506	121,921
Maintenance [Member]
Revenue		238,860	200,599
Maintenance [Member] | North America [Member]
Revenue		195,326	177,916
Maintenance [Member] | South America [Member]
Revenue		2,116
Maintenance [Member] | EMEA [Member]
Revenue	[1]	36,418	8,713
Maintenance [Member] | Asia [Member]
Revenue		5,000	13,970
Professional Services [Member]
Revenue		2,750	101,850
Professional Services [Member] | North America [Member]
Revenue		750	101,850
Professional Services [Member] | South America [Member]
Revenue
Professional Services [Member] | EMEA [Member]
Revenue	[1]
Professional Services [Member] | Asia [Member]
Revenue		$ 2,000
[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 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: 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=118956577&loc=SL49130543-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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- Details

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X

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Period Type: