Note 5 - Stock Based Compensation (Details) - Options Outstanding and Exercisable (USD $)			6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014 Options Outstanding [Member]	Jun. 30, 2014 Options Outstanding [Member] Range 1 [Member]	Jun. 30, 2014 Options Outstanding [Member] Range 2 [Member]	Jun. 30, 2014 Options Outstanding [Member] Range 3 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Stock Options Outstanding			2,615,000	197,000	2,076,500	341,500
Weighted Average Exercise Price	$ 1.27	$ 1.13	$ 1.27	$ 0.75	$ 1.09	$ 2.69
Weighted Average Remaining Contractual Life			7 years 105 days	4 years 47 days	7 years 153 days	8 years 116 days
Stock Options Exercisable			1,550,996	197,000	1,215,330	138,666
Weighted Average Exercise Price			$ 1.12	$ 0.75	$ 1.12	$ 1.67