Summary of Significant Accounting Policies (Summary of Property, Plant and Equipment) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Total cost	$ 8,399,946	$ 8,027,782
Accumulated depreciation	(4,896,041)	(4,308,247)
Net property and equipent	3,503,904	3,719,535
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Total cost	794,959	668,794
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total cost	425,825	516,318
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total cost	3,404,975	3,151,676
Home Office [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 3,774,187	$ 3,690,994