Income Taxes (Details) - USD ($)	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory income tax rate (as a percent)	2100.00%	35.20%	3500.00%
Deferred Tax Assets, Net	$ 4,780,000		$ 4,943,000
Blended tax rate (as a percent)	21.60%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 200,000
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent	2.10%
Unrecognized Tax Benefits	$ 0
Income Tax Examination, Penalties and Interest Expense	$ 0	$ 0