Registration of securities issued in business combination transactions

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (10-K) (Parenthetical)

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Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (10-K) (Parenthetical)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Percentage of U.S. federal tax rate 21.00% 21.00%