Quarterly report pursuant to Section 13 or 15(d)

Commitments and contingencies - Schedule of Future Minimum Rental Payments for Operating Leases (Details)

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Commitments and contingencies - Schedule of Future Minimum Rental Payments for Operating Leases (Details) (USD $)
Mar. 31, 2014
Future minimum lease payments under all non-cancelable operating leases  
2013 $ 430,144
2014 535,348
2015 485,040
2016 491,920
2017 499,122
2018 and thereafter 2,742,217
Total $ 5,183,791