Note 14 - Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

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

	Shares Underlying Awards			Weighted Average Exercise Price
Outstanding— January 1, 2017		198,563		$	6.73
Granted		--		$	--
Exercised		(93,218	)	$	6.90
Forfeited		--		$	--
Expired		--		$	--
Outstanding—December 31, 2017		105,345		$	6.58
Exercisable—December 31, 2017		105,345		$	6.58

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

	Restricted Stock Units			Weighted Average Grant Date Fair Value
Outstanding— January 1, 2017		262,669		$	8.41
Granted		47,766		$	10.09
Vested		(83,470	)	$	8.20
Forfeited		(6,440	)	$	8.75
Outstanding—December 31, 2017		220,525		$	8.85