Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Effective Tax Rate and the Federal Statutory Tax Rate (Detail)

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Income Taxes - Reconciliation of Effective Tax Rate and the Federal Statutory Tax Rate (Detail)
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Federal statutory tax rate 34.00% 34.00% 34.00%
State income taxes, net of federal income tax benefit 4.41% 3.37% 1.77%
Non-deductible expenses (29.17%) 5.89% 1.89%
Non-deductible stock options and warrants (10.24%) 4.00% 14.45%
Non-deductible tax expense 0.00% 8.79%  
Prior year adjustments for stock compensation (0.26%) (27.93%)  
Other, net     0.26%
Valuation allowance 49.49% (15.96%) (45.44%)
Effective tax rate 48.23% 12.16% 6.93%