Note 15 - Stock Plans and Stock Associated with Acquisition (Tables)

12 Months Ended

Dec. 31, 2015

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, 2014		113,961		$	4.96
Granted		122,534		$	4.71
Vested		(65,712	)	$	4.96
Forfeited or cancelled		(15,022	)	$	4.96
Outstanding at December 31, 2015		155,761		$	4.78