Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2018	Jun. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite Lived Intangible Assets [Line Items]
Goodwill impairment	$ 2,400,000	$ 1,600,000	$ 0	$ 2,350,000	$ 1,575,000
Contingent consideration liability adjustment		$ 1,200,000			1,200,000
Amortization during the year			1,250,000	1,257,000	1,170,000
Core Deposits [Member]
Finite Lived Intangible Assets [Line Items]
Amortization during the year			115,000	160,000	205,000
Other Intangible Assets [Member]
Finite Lived Intangible Assets [Line Items]
Amortization during the year			$ 1,100,000	1,100,000	965,000
Banking Segment [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill impairment				0	0
Courier Capital [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill impairment				0	$ 0
HNP Capital [Member]
Finite Lived Intangible Assets [Line Items]
Goodwill impairment				$ 0