Note 7 - Stock Plans and Stock Associated with Acquisition (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

	RSUs			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2015		155,761		$	4.78
Granted		119,655		$	4.40
Vested		(56,728	)	$	4.80
Forfeited or cancelled		(6,475	)	$	4.71
Outstanding at September 30, 2016		212,213		$	4.56