Note 4 - Stockholders' Equity (Details) - Summary of option award activity under the Equity Incentive Plan: (USD $)	6 Months Ended
	Jun. 29, 2013	Jun. 30, 2013	Jun. 30, 2012
Summary of option award activity under the Equity Incentive Plan: [Abstract]
December 31, 2012	5,016,916	5,016,916
December 31, 2012 (in Dollars per share)	$ 4.54	$ 4.54
December 31, 2012	404,500	404,500
December 31, 2012 (in Dollars per share)	$ 2.30	$ 2.30
Granted	863,604	863,604	639,500
Granted (in Dollars per share)	$ 1.68
Granted (in Dollars per share)	$ 1.22	$ 1.22	$ 1.61
Vested	(389,750)
Vested (in Dollars per share)	$ 1.75
Exercised	(9,681)
Exercised (in Dollars per share)	$ 1.28
Forfeited, Canceled	(186,895)
Forfeited, Canceled (in Dollars per share)	$ 2.63
Forfeited, Canceled	(121,250)
Forfeited, Canceled (in Dollars per share)	$ 0.94
June 30, 2013	5,683,944
June 30, 2013 (in Dollars per share)	$ 4.18
June 30, 2013	757,104
June 30, 2013 (in Dollars per share)	$ 1.56