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Commitments and Contingencies (Details) (USD $)
3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Jun. 30, 2013
California State [Member]
acre
Sep. 30, 2012
California State [Member]
Jun. 30, 2013
Maryland [Member]
acre
Sep. 30, 2013
Maryland [Member]
Commitments And Contingencies Disclosure [Line Items]            
Rent expense $ 163,578 $ 156,088   $ 508,456   $ 487,946
Operating leases, space     27,446   1,460  
Operating lease expiration date     Jun. 30, 2013   Jan. 31, 2013