v2.4.0.8
Commitments and Contingencies (Details 1) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Summary of activity in accrued warranty account      
Balance as of beginning of year $ 140,074 $ 135,606 $ 50,690
Warranty costs accrued 0 32,816  
Settlements made 0 (28,348)  
Balance as of end of year $ 140,074 $ 140,074 $ 50,690