CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Allowance for doubtful accounts (in Dollars) $ 342,084 $ 352,615
Common stock: par value (in Dollars per share) $ 0.001 $ 0.001
Common stock: shares authorized 50,000,000 50,000,000
Common stock: shares issued 19,340,882 18,715,882
Common stock: shares outstanding 19,340,882 18,715,882