Note 4 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

	Shares			Award Fair Value
Balance, January 1, 2019		657,717		$	7.39
Granted		28,191		$	5.64
Forfeited		-			-
Vested		(1,408	)	$	7.72
Unvested Balance, March 31, 2019		684,500		$	7.32
Balance, January 1, 2018		36,801		$	8.03
Granted		-			-
Forfeited		-			-
Vested		(16,648	)		8.22
Unvested Balance, March 31, 2018		20,153		$	7.69

Share-based Payment Arrangement, Nonvested Award, Cost [Table Text Block]

2019	$	575,815
2020		764,732
2021		752,087
2022		688,713
2023		509,911