Provision for Income Taxes (Schedule of Reconciliation of Income Tax Provision and Statutory Federal Tax Rate) (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Expected income tax at statutory federal tax rate, percentage	21.00%		21.00%		34.00%
Expected income tax at statutory federal tax rate	$ 438,000		$ 1,286,000
Tax amortization of intangible assets	(70,000)		(210,000)
Depreciation	8,000		19,000
Net operating loss	(47,000)		(141,000)
Temporary differences - charitable contributions	4,000		(57,000)
State taxes	25,000		11,000
Reversal of valuation allowance	(1,393,000)		(1,393,000)
Total (Benefit) from income taxes	$ (1,035,000)		$ (485,000)