Income Taxes (Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal tax rate	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(0.50%)	0.00%	0.00%
State income taxes, net of federal tax benefit	(39.70%)	2.30%	1.90%
effective tax rate reconciliation, non-deductible expense, warrant remeasurement, percent	(485.00%)	4.00%	0.00%
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent	(21.70%)	(3.40%)	(0.00%)
Tax effect of other non-deductible expenses	(19.60%)	1.60%	0.90%
Other	3.50%	(0.60%)	(0.40%)
Effective income tax rate	432.60%	38.90%	37.40%
2017 Tax Cuts and Jobs Act [Member]
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Statutory federal tax rate	0.00%	0.00%	0.00%