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Note 14 - Stockholders' Equity (Detail) - Summary of stock option activity under the 2001 Plan: (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Shares 3.08  
Weighted Average Exercise Price (in Dollars per share) $ 1.30  
2001 Plan [Member]
    
Outstanding at December 31, 2010 53,900 166,540
Outstanding at December 31, 2010 (in Dollars per share) $ 3.77 $ 14.85
Shares 22,200 53,900
Weighted Average Exercise Price (in Dollars per share) $ 3.08 $ 3.77
Shares (24,400) (20,333)
Weighted Average Exercise Price (in Dollars per share) $ 3.04 $ 2.14
Shares (7,300) (92,307)
Weighted Average Exercise Price (in Dollars per share) $ 9.35 $ 24.12