Summary of Significant Accounting Policies (Schedule of Fair Value Measurements of Contingent Consideration) (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Summary of Significant Accounting Policies
Valuation Methodology	Probability weighted income approach	Probability weighted income approach
Significant unobservable input - milestone dates	2020-2026	2019-2025
Discount rate	7.83%	7.20%
Probability of occurrence - minimum	2.10%	1.60%
Probability of occurrence - maximum	82.00%	62.50%