Note 9 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Options Issued Outside of 2007 Equity Plan (USD $)	0 Months Ended	1 Months Ended		12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Oct. 02, 2012	Dec. 27, 2013	Apr. 27, 2009	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Outside of 2007 Plan [Member]	Dec. 31, 2012 Outside of 2007 Plan [Member]	Dec. 31, 2011 Outside of 2007 Plan [Member]	Dec. 31, 2013 Outside of 2007 Plan [Member] Minimum [Member]	Dec. 31, 2012 Outside of 2007 Plan [Member] Minimum [Member]	Dec. 31, 2011 Outside of 2007 Plan [Member] Minimum [Member]	Dec. 31, 2013 Outside of 2007 Plan [Member] Maximum [Member]	Dec. 31, 2012 Outside of 2007 Plan [Member] Maximum [Member]	Dec. 31, 2011 Outside of 2007 Plan [Member] Maximum [Member]	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2013 Minimum [Member]	Dec. 31, 2010 Minimum [Member]	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2013 Maximum [Member]	Dec. 31, 2010 Maximum [Member]
Note 9 - Stock-Based Compensation and Other Employee Benefit Plans (Details) - Options Issued Outside of 2007 Equity Plan [Line Items]
Options Outstanding (in Shares)							16,398,395	13,338,220	11,671,484
Price per share										$ 0.18	$ 0.18	$ 0.25	$ 1.00	$ 1.00	$ 1.89	$ 0.25	$ 0.25	$ 0.23	$ 1.89	$ 1.89	$ 1.89
Weighted Average Price per share				$ 0.44	$ 0.44	$ 0.42	$ 0.39	$ 0.41	$ 0.43
Options Outstanding (in Shares)	168,750		691,975				3,060,175	1,666,736
Price per share				$ 0.28						$ 0.25	$ 0.30		$ 0.30	$ 0.99		$ 0.34			$ 0.40
Weighted Average Price per share	$ 0.40	$ 0.25	$ 0.55	$ 0.28	$ 0.38		$ 0.28	$ 0.41