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Note 9 - Commitments and Contingencies (Detail) (USD $)
 3 Months Ended
Mar. 31, 2014
May 05, 2014
May 19, 2013
Oct. 25, 2012
Commitments and Contingencies Disclosure [Abstract]        
Agreement terminable by either party notice period of days       30
Company pays waste heat solutions per month through Feb. 2013       $ 500,000
Company pays waste heat solutions per month thereafter Feb. 2013       750,000
Fully vested 10-year option issued to purchase shares of common stock at $.56 per share       500,000
Right to Purchase of additional shares for options vesting six months from the date of contract       500,000
Fair value of the options fully vested recorded as Research and development cost       18,200,000
Price per share of the 10 year options       $ 0.56
Fair value of option vesting was recorded during the fourth quarter of 2012       6,100,000
Amount recorded during the first quarter of 2013       9,100,000
Amount recorded in the second quarter of 2013       3,000,000
Promissory Note with Edward Gomez   $ 30,000 $ 30,000  
Promissory note bears interest rate     10.00%  
Promissory note maturity date May 19, 2014