Fair Value (Fair Value Of Financial Instruments) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	$ 207,433,000	$ 219,180,000
Investment securities	1,742,123,000	1,754,140,000
Loans Held-for-sale, Fair Value Disclosure	1,928,000	9,387,000
Derivative Assets	100,000	300,000
Impaired Loan Fair Value	4,889,000	1,103,000
Other loans	6,910,287,000	6,783,848,000
Loans receivable, net	6,917,206,000	6,794,671,000
Time deposits	615,544,000	714,307,000
Other	5,280,000	1,465,000
Total deposits	620,824,000	715,772,000
Short-term borrowings	189,493,000	238,786,000
Subordinated debentures/notes	178,812,000	207,912,000
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	0	262,000
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	102,000	333,000
Impaired Loan Fair Value		1,103,000
Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	1,622,000	1,952,000
Loans [Member] | Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	1,622,000	1,952,000
Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,746,000	2,129,000
Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	243,000	226,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and money market instruments	207,433,000	219,180,000
Derivative Assets	0	0
Other	5,280,000	1,465,000
Total deposits	5,280,000	1,465,000
Fair Value, Inputs, Level 1 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,277,000	1,630,000
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	1,742,123,000	1,754,140,000
Loans Held-for-sale, Fair Value Disclosure	1,928,000	9,387,000
Derivative Assets	102,000	333,000
Loans receivable, net	2,030,000	9,720,000
Time deposits	615,544,000	714,307,000
Total deposits	615,544,000	714,307,000
Short-term borrowings	189,493,000	238,786,000
Subordinated debentures/notes	178,812,000	207,912,000
Fair Value, Inputs, Level 2 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	1,622,000	1,952,000
Swap	1,622,000	1,952,000
Fair Value, Inputs, Level 2 [Member] | Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	0	262,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Impaired Loan Fair Value	4,889,000	1,103,000
Other loans	6,910,287,000	6,783,848,000
Loans receivable, net	6,915,176,000	6,784,951,000
Fair Value, Inputs, Level 3 [Member] | Loans [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	469,000	499,000
Fair Value, Inputs, Level 3 [Member] | Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Swap	$ 243,000	$ 226,000