Note 3 - Stock-Based Compensation (Details) - Summary of Stock Option Activity (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Summary of Stock Option Activity [Abstract]
Weighted Average Exercise Price	$ 5.04	$ 4.53
# of shares	84,600	121,600
Weighted Average Exercise Price		$ 6.87
# of shares	34,601	12,000
Weighted Average Exercise Price	$ 4.32	$ 4.23
# of shares	(12,200)	(49,000)
Weighted Average Exercise Price	$ 5.78	$ 5.04
# of shares	72,400	84,600
Weighted Average Remaining Contractual Term (in years)	6 years 153 days	7 years 80 days
Aggregate Intrinsic Value	$ 89,840	$ 104,656
Weighted Average Exercise Price	$ 5.78	$ 5.04
# of shares	72,400	84,600
Weighted Average Remaining Contractual Term (in years)	6 years 153 days	7 years 80 days
Aggregate Intrinsic Value	$ 89,840	$ 104,656