Commitments and Contingencies - Additional Information (Detail) (USD $)
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12 Months Ended | |
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Dec. 31, 2013
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Dec. 31, 2012
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Payment Of Commitment And Contingencies [Line Items] | ||
Operating lease expense | $ 271,383 | $ 287,806 |
Operating lease renewal option period | 60 months | |
Operating lease agreement rent abatement period | 5 months | |
Scottsdale [Member]
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Payment Of Commitment And Contingencies [Line Items] | ||
Operating lease Period | 66 months | |
Operating leases expiring period | March 2017 | |
Frisco [Member]
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Payment Of Commitment And Contingencies [Line Items] | ||
Operating lease Period | 60 months | |
Operating leases expiring period | September 2015 |