Note 4 - Accounting for Stock-based Compensation (Details) - Option Activity (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014
Option Activity [Abstract]
Outstanding			1,262,763
Outstanding, weighted average exercise price			$ 1.57
Outstanding, weighted average remaining contractual term (years)	7 years 204 days		7 years 237 days
Outstanding, aggregate intrinsic value			$ 40,570	[1]
Exercisable options at the end of the period	482,763
Exercisable options at the end of the period	$ 1.47
Exercisable options at the end of the period	5 years 80 days
Exercisable options at the end of the period	6,090	[1]
Outstanding	1,227,763
Outstanding, weighted average exercise price	$ 1.57
Outstanding, weighted average remaining contractual term (years)	7 years 204 days		7 years 237 days
Outstanding, aggregate intrinsic value	$ 8,090	[1]

[1] Calculation of aggregate intrinsic value is based on the share price of the Company's common stock as of March 31, 2015 ($ 0.88 per share).