Earnings Per Common Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Treasury Stock, Shares, Acquired			50,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	119,587		119,587		85,425
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	101,780	68,481	111,193	72,088
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period	0	0	46,000	42,000
Treasury Stock, Shares, Acquired	0	0	50,000	0