Note 5 - Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

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

	Number of shares
	Incentive Stock Option			Non-Incentive Stock Option			Weighted Average Exercise Price
Balance outstanding as of January 1, 2015		140,300			82,500		$	18.23
Granted		-			-		$	-
Exercised		(1,300	)		(20,000	)	$	5.23
Forfeited		(18,000	)		-		$	23.33
Balance outstanding as of March 31, 2015		121,000			62,500		$	19.24
Options exercisable as of March 31, 2015		121,000			62,500		$	19.24