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)

v3.8.0.1
Income Taxes - Reconciliation of Effective Tax Rate and the Federal Statutory Tax Rate (Detail)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Federal statutory tax rate 34.00% 34.00% 34.00%
State income taxes, net of federal income tax benefit (3.78%) 3.43% 4.41%
Non-deductible expenses (13.38%) (1.88%) (29.17%)
Non-deductible stock options and warrants (19.76%) (13.37%) (10.24%)
Prior year adjustments for stock compensation     (0.26%)
Deferred revaluation for Tax Cuts and Jobs Act 88.53%    
Foreign Tax Rate Differential (9.89%)    
Other, net (0.02%) 0.73%  
Valuation allowance     49.49%
Effective tax rate 75.70% 22.91% 48.23%