Note 9 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Activity for our Stock Options (USD $)	6 Months Ended						6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 2007 Plan [Member]	Jun. 30, 2012 2007 Plan [Member]	Jun. 30, 2012 2007 Plan [Member] Minimum [Member]	Jun. 30, 2013 2007 Plan [Member] Minimum [Member]	Dec. 31, 2012 2007 Plan [Member] Minimum [Member]	Jun. 30, 2012 2007 Plan [Member] Maximum [Member]	Jun. 30, 2013 2007 Plan [Member] Maximum [Member]	Dec. 31, 2012 2007 Plan [Member] Maximum [Member]
Note 9 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Activity for our Stock Options [Line Items]
Options Outstanding (in Shares)		8,521,086	7,739,258
Shares Available (in Shares)		4,460,742	4,260,742
Price per share		$ 0.44	$ 0.45	$ 0.25	$ 0.23	$ 0.23	$ 1.89	$ 1.89	$ 1.89
Options Outstanding (in Shares)		40,000	306,667
Shares Available (in Shares)		(40,000)	(306,667)
Price per share	$ 0.28	$ 0.28	$ 0.35	$ 0.34			$ 0.35
Options Outstanding (in Shares)		0	0
Shares Available (in Shares)		0	0
Price per share		$ 0	$ 0
Options Outstanding (in Shares)		0	0
Shares Available (in Shares)		0	0
Price per share		$ 0	$ 0
Options Outstanding (in Shares)		8,561,086	8,045,925
Shares Available (in Shares)		4,420,742	3,954,075
Price per share		$ 0.44	$ 0.45	$ 0.25	$ 0.23	$ 0.23	$ 1.89	$ 1.89	$ 1.89