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Note 13 - Segment Information	3 Months Ended
	Mar. 31, 2019
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	13. SEGMENT INFORMATION The Company has determined that it operates in one discrete segment consisting of biometric products. Geographically, North American sales accounted for approximately 46% and 52% of the Company’s total sales for the three -month periods ended March  31, 2019 and 2018, respectively.

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- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

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