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Note 3 - Revenue From Contracts with Customers - Disaggregation of Revenue (Details) - USD ($)		3 Months Ended
		Mar. 31, 2018		Mar. 31, 2017
Revenue		$ 841,455		$ 1,418,335
North America [Member]
Revenue		440,325
EMEA [Member]
Revenue	[1]	265,239
Asia [Member]
Revenue		135,891
License [Member]
Revenue		102,719		496,568
License [Member] | North America [Member]
Revenue		60,969
License [Member] | EMEA [Member]
Revenue	[1]	41,750
License [Member] | Asia [Member]
Revenue
Hardware [Member]
Revenue		436,287	[1]	$ 601,180
Hardware [Member] | North America [Member]
Revenue	[1]	99,590
Hardware [Member] | EMEA [Member]
Revenue	[1]	214,776
Hardware [Member] | Asia [Member]
Revenue	[1]	121,921
Maintenance [Member]
Revenue		200,599
Maintenance [Member] | North America [Member]
Revenue		177,916
Maintenance [Member] | EMEA [Member]
Revenue	[1]	8,713
Maintenance [Member] | Asia [Member]
Revenue		13,970
Professional Services [Member]
Revenue		101,850
Professional Services [Member] | North America [Member]
Revenue		101,850
Professional Services [Member] | EMEA [Member]
Revenue	[1]
Professional Services [Member] | Asia [Member]
Revenue
[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://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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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X

- Details

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Period Type:

X

- Details

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Period Type:

X

- Details

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X

- Details

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X

- Details

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Data Type:	na
Balance Type:
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: