Note 4 - Stockholders' Equity (Detail) - Significant Ranges Of Outstanding And Exercisable Options (USD $)			3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 .70 [Member]	Mar. 31, 2013 $0.83 [Member]	Mar. 31, 2013 1.24 [Member]	Mar. 31, 2013 2.65 [Member]	Mar. 31, 2013 $2.67 [Member]	Mar. 31, 2013 2.95 [Member]	Mar. 31, 2013 3.50 [Member]	Mar. 31, 2013 Total [Member]
Exercise Prices			$ 0.70	$ 0.83	$ 1.24	$ 2.65	$ 2.67	$ 2.95	$ 3.50
Number Outstanding, Vested and Exercisable (in Shares)			20,000	1,500,000	20,000	10,000	20,000	90,000	20,000	1,680,000
Weighted Average Remaining Contractual Life (In Years)			6 years 109 days	9 years 36 days	5 years 109 days	4 years 219 days	4 years 109 days	3 years 146 days	3 years 328 days	8 years 219 days
Weighted Average Exercise Price Per Share	$ 1.01	$ 1.01	$ 0.70	$ 0.83	$ 1.24	$ 2.65	$ 2.67	$ 2.95	$ 3.50	$ 1.01
Number Exercisable (in Shares)			20,000		20,000	10,000	20,000	90,000	20,000	180,000
Weighted Average Exercise Price Per Share			$ 0.70		$ 1.24	$ 2.65	$ 2.67	$ 2.95	$ 3.50	$ 2.52