XML 23 R30.htm IDEA: XBRL DOCUMENT v2.4.0.6
Note 6 - Fair Value Measurements (Detail) - Fair value measurements of assets and liabilities (USD $)
Jun. 30, 2012
Dec. 31, 2011
Cash equivalents $ 3,878,216 $ 5,394,434
Fair Value, Inputs, Level 1 [Member]
   
Cash equivalents $ 3,878,216 $ 5,394,434