XML 68 R63.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 15 - Financial Instruments (Detail) - Summary of Fair Value of Financial Instruments (USD $)
Dec. 31, 2012
Dec. 31, 2011
Derivatives, current and long-term portion $ 2,393,568 $ 3,451,497
Trading securities   27,473
Fair Value, Inputs, Level 1 [Member]
   
Total   27,473
Trading securities   27,473
Fair Value, Inputs, Level 2 [Member]
   
Derivatives, current and long-term portion 2,393,568 3,451,497
Total   $ 3,451,497