Taxes - Reconciliation of Statutory Tax Rate to Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Federal statutory rate	34.00%	34.00%	34.00%
State statutory rate, net of Federal tax effect	7.20%	7.20%	7.20%
Differences in taxable (loss) income from GAAP income	(3.90%)	(1.00%)	(20.30%)
Change in valuation allowance	(1.00%)	(11.20%)	6.10%
Dividends paid deduction	(23.40%)	(26.30%)	(38.30%)
Federal statutory rate change	(5.20%)	(0.00%)	(0.00%)
Effective Tax Rate	7.70%	2.70%	(11.30%)