Summary of Significant Accounting Policies (Summary of Property, Plant and Equipment) (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Total cost	$ 8,431,900	$ 8,399,946
Accumulated depreciation	(5,099,090)	(4,896,041)
Net property and equipent	3,332,810	3,503,904
Automobiles [Member]
Property, Plant and Equipment [Line Items]
Total cost	603,046	794,959
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Total cost	436,568	425,825
Computer Equipment and Software [Member]
Property, Plant and Equipment [Line Items]
Total cost	3,542,339	3,404,975
Home Office [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 3,849,947	$ 3,774,187