Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details)

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Income Taxes - Summary of Reconciliation of Statutory Federal Income Tax Rate and Effective Income Tax Rate (Details)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
Tax benefit at federal statutory rate (34.00%) (34.00%)
State income taxes, net of federal benefit (4.00%) (4.00%)
Permanent differences 1.20% (11.10%)
Prior period adjustment 0.00% (1.10%)
Other (0.40%) 23.40%
Change in valuation allowance 37.20% 26.80%
Effective income tax rate 0.00% 0.00%