Note 5 - Stock-Based Compensation (Details) - Option Activity (USD $)	6 Months Ended
	Jun. 30, 2013
Option Activity [Abstract]
Outstanding as of January 1, 2013	2,606,500
Outstanding as of January 1, 2013 (in Dollars per share)	$ 1.10
Issued	166,500
Issued (in Dollars per share)	$ 1.12
Exercised	(118,670)
Exercised (in Dollars per share)	$ 1.08
Forfeited	(72,330)
Forfeited (in Dollars per share)	$ 1.33
Outstanding as of June 30, 2013	2,582,000
Outstanding as of June 30, 2013 (in Dollars per share)	$ 1.09
Exercisable as of June 30, 2013	1,034,165
Exercisable as of June 30, 2013 (in Dollars per share)	$ 1.17