Note 7 - Stock-based Compensation (Tables)

9 Months Ended

Sep. 30, 2016

Notes Tables

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

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years		Intrinsic Value
Options outstanding at January 1, 2016		192,893		$	5.75
Options forfeited		(55,800	)		12.61
Options exercised		(34,000	)		2.95
Options outstanding at September 30, 2016		103,093		$	2.95		2.5	$	751,000
Options exercisable at September 30, 2016		103,093		$	2.95		2.5	$	751,000

	Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years		Intrinsic Value
Options outstanding at January 1, 2016		102,400		$	6.32
Options granted		108,000			8.75
Options exercised		(6,800	)		6.32
Options outstanding at September 30, 2016		203,600		$	7.61		6.5	$	535,000
Options exercisable at September 30, 2016		45,200			6.32		5.6	$	177,000
Expected to vest after September 30, 2016		138,172		$	7.98		6.8	$	312,000

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	2016
Expected life of stock options (in years)		5.1
Risk free interest rate		1.52%
Volatility		53.6%
Dividend yields		2.00%
Weighted-average fair value of options granted during the nine months ended September 30, 2016		$3.55