Earnings Per Common Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Antidilutive Securities Excluded from Computation Of Earnings Per Share [Line Items]
Anti-dilutive options	0	0	0	0
Minimum [Member]
Antidilutive Securities Excluded from Computation Of Earnings Per Share [Line Items]
Options expiration date	Feb. 24, 2021
Maximum [Member]
Antidilutive Securities Excluded from Computation Of Earnings Per Share [Line Items]
Options expiration date	Sep. 19, 2022