Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Valuation reserve deducted from Prepaid Expenses and Other Current Assets:
Balance at Beginning of Year
Charges to Loss on Sale of Subsidiary	$ 1,770,000
Deductions
Balance at end of year	$ 1,770,000