Provision for Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Effective tax rate from continuing operations	(50.00%)	(8.00%)
Applicable federal income tax rate	21.00%	21.00%		34.00%
Changes in deferred tax asset	$ (1,393,000)	$ (1,393,000)
Deferred tax asset	6,619,000	6,619,000
Valuation allowance	5,226,000	5,226,000
Reversal of valuation allowance	(1,393,000)	(1,393,000)
Internal Revenue Code [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward, annual limitation		900,000
Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	22,657,000	22,657,000
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	$ 15,834,000	$ 15,834,000