Note 10 - Stock-Based Compensation (Detail) - Summary of the Company’s stock compensation expense (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Stock-based compensation	$ 33,333	$ 67,821	$ 151,938	$ 118,949	$ 149,468
Research and Development Expense [Member]
Stock-based compensation	4,123	382	8,247	38,484
Marketing Expense [Member]
Stock-based compensation	7,003	4,380	58,629	8,769
General and Administrative Expense [Member]
Stock-based compensation	$ 22,207	$ 63,059	$ 85,062	$ 71,696