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Note 7 - Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Share-based Compensation, Stock Options, Activity [Table Text Block]

		Number of shares				Weighted average exercise price
Options outstanding at beginning of year			764,430			$	8.78
Granted			—				—
Less:
Exercised			—				—
Forfeited prior to vesting			(24,757	)			11.05
Canceled or expired			(33,582	)			10.87
Options outstanding at September 30 , 2018			706,091				8.60
Options exercisable at end of September 30 , 2018			598,805			$	8.22

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

		Three months ended September 30 ,								Nine months ended September 30 ,
		2018				2017				2018				2017
Cost of goods sold		$	3			$	5			$	12			$	16
Sales and marketing			8				10				28				31
Research and product development			23				25				81				80
General and administrative			78				122				258				341
		$	112			$	162			$	379			$	468

X

- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

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- Definition

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