Note 9 - Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Share-based Payment Arrangement, Option, Activity [Table Text Block]

Stock Options	Number of shares
	Incentive Stock Option			Non- Incentive Stock Option			Weighted Average Exercise Price
Balance outstanding as of January 1, 2019		12,500			5,000		$	5.14
Granted		-			-			-
Exercised		(9,000	)		(5,000	)		5.16
Forfeited		-			-			-
Balance outstanding as of September 30, 2019		3,500			-		$	5.08
Options exercisable as of September 30, 2019		3,500			-		$	5.08

Nonvested Restricted Stock Shares Activity [Table Text Block]

Restricted Stock	Number of Shares			Weighted Average Grant- Date Fair Value
Balance of shares non-vested as of January 1, 2019		32,349		$	18.93
Granted		15,434			23.85
Vested		(20,771	)		17.67
Forfeited		(1,649	)		22.27
Balance of shares non-vested as of September 30, 2019		25,363		$	22.74

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

Performance Stock Units	Performance Stock Units		Weighted Average Grant-Date Fair Value
Balance of shares non-vested as of January 1, 2019		47,322	$	20.48
Granted		-		-
Vested		-		-
Forfeited		-		-
Balance of shares non-vested as of September 30, 2019		47,322	$	20.48