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Note 7 - Share-based Compensation - Schedule of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based compensation expense	$ 137	$ 171
Cost of Sales [Member]
Share-based compensation expense	5	8
Selling and Marketing Expense [Member]
Share-based compensation expense	10	14
Research and Development Expense [Member]
Share-based compensation expense	30	38
General and Administrative Expense [Member]
Share-based compensation expense	$ 92	$ 111

X

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

+ Details

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Balance Type:	debit
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- Details

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- Details

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- Details

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- Details

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