v2.4.0.6
4. Lines of Credit (Detail) (USD $)
3 Months Ended
Mar. 31, 2013
Dec. 31, 2011
Line of Credit Facility, Maximum Borrowing Capacity $ 4,425,905 $ 2,500,000
Line of Credit Facility, Increase, Additional Borrowings 4,000,000  
Option Granted as Consideration for Line of Credit $ 124,250,000