Description of the Business and Summary of Significant Accounting Policies (Schedule of Potentially Dilutive Common Stock Equivalents) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common stock equivalents	27,869,466	31,673,574	27,869,466	31,673,574
Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common stock equivalents	5,058,360	4,832,468	5,058,360	4,832,468
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common stock equivalents	15,265,773	19,295,773	15,265,773	19,295,773
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total potentially dilutive common stock equivalents	7,545,333	7,545,333	7,545,333	7,545,333