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Income Taxes - Schedule of Reconciliation of Statutory Federal Income Tax Rate (Details) (10-K)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Federal income tax benefit at statutory rate 21.00% 21.00%
State income tax benefit, net of federal impact 7.00% 6.00%
Permanent differences (0.60%) (0.80%)
Income passed through to non-controlling interests 0.00% (4.10%)
Change in effective rate (3.00%) (9.80%)
Other (0.10%) (0.90%)
Change in valuation allowance (24.30%) (13.10%)
Effective income tax rate 0.00% (1.70%)