Summary of Significant Accounting Policies (Net Loss Per Common Share) (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from earnings per share calculation	679,923
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from earnings per share calculation	1,081,667	1,081,667
Common Stock and Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from earnings per share calculation		110,884
Series A-1 Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from earnings per share calculation		577,063
Series A-2 Convertible Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from earnings per share calculation		102,860