Note 4 - Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2017

Notes Tables

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

	Weighted Average Exercise Price		# of shares		Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value
Outstanding, January 1, 2017	$	5.14		56,400
Granted		-		-
Cancelled		-		-
Exercised		-		-
Outstanding, March 31, 2017	$	5.14		56,400		4.24	$	172,584
Exercisable, March 31, 2017	$	5.14		56,400		4.24	$	172,584
Outstanding, January 1, 2016	$	5.17		68,400
Granted		-		-
Cancelled		-		-
Exercised		-		-
Outstanding, March 31, 2016	$	5.17		68,400		5.24	$	83,933
Exercisable, March 31, 2016	$	5.17		68,400		5.24	$	83,933

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

	Shares			Award Fair Value
Balance, January 1, 2017		62,046		$	8.24
Granted		9,005		$	8.05
Forfeited		-			-
Vested		(21,013	)		8.49
Unvested Balance, March 31, 2017		50,038		$	8.22
Balance, January 1, 2016		60,433		$	8.97
Granted		33,685		$	7.14
Forfeited		(8,187	)		8.97
Vested		(20,784	)		8.97
Unvested Balance, March 31, 2016		65,147		$	8.03

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

2017	$	143,444
2018		141,816
2019		85,313
2020		28,144
2021		3,020