Note 3 - Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2013

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

Schedule of 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, 2012	$	4.40		115,600
Granted		5.27		12,000
Cancelled		-		-
Exercised		-		-
Outstanding, June 30, 2012	$	4.48		127,600			5.13	$	216,332
Exercisable, June 30, 2012	$	4.40		115,600			4.69	$	206,332
Outstanding, January 1, 2013	$	4.53		121,600
Granted		6.87		12,000
Cancelled		-		-
Exercised		4.24		(22,000	)
Outstanding, June 30, 2013	$	4.84		111,600			5.72	$	167,186
Exercisable, June 30, 2013	$	4.60		99,600			5.24	$	155,500

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

	June 30, 2013		June 30, 2012
Weighted average grant-date fair value of stock options granted	$	11,686	$	10,000
Total fair value of stock options vested	N/A		N/A
Total intrinsic value of stock options exercised	$	51,260	N/A