Consolidated Condensed Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	$ 5,153	$ 2,498
Amortization of Deferred Loan Origination Fees, Net	(1,866)	(1,583)
Depreciation	2,507	2,133
Amortization of investment securities, net	388	353
Depreciation, Amortization and Accretion, Net	(766)	(32)
Loss (gain) on equity securities, net	(973)	1,742
Loan originations to be sold in secondary market	(88,824)	(34,419)
Proceeds from sale of loans in secondary market	79,139	35,123
Share-based compensation expense	1,254	1,358
Loss on sale of OREO, net	196	12
Bank owned life insurance income	(1,248)	(1,006)
Investment in qualified affordable housing tax credits amortization	1,829	1,812
Changes in assets and liabilities:
Increase in other assets	(4,593)	(1,118)
Decrease in other liabilities	(5,595)	(3,150)
Net cash provided by operating activities	8,762	24,655
Investing activities:
Payments for (Proceeds from) Federal Home Loan Bank Stock	1,216	5,405
Proceeds from Sale, Maturity and Collection of Investments [Abstract]
Available-for-sale securities	47,922	44,066
Held-to-maturity securities	0	68
Payments to Acquire Investments [Abstract]
Equity securities	(1,071)	0
Payments to Acquire Federal Reserve Bank Stock	0	(2,585)
Net loan originations, portfolio loans	(6,818)	(47,909)
Payments for Affordable Housing Programs	(2,546)	(2,658)
Proceeds from the sale of OREO	383	181
Life insurance death benefits	0	584
Purchases of premises and equipment	(6,343)	(2,902)
Net cash provided by (used in) investing activities	32,743	(5,750)
Financing activities:
Net increase in deposits	237,611	64,389
Net decrease in short-term borrowings	(37,284)	(9,397)
Proceeds from issuance of long-term debt	0	25,000
Repayments of Long-term Debt	(52,500)	(50,000)
Payment, Tax Withholding, Share-based Payment Arrangement	(837)	(827)
Repurchase of common shares to be held as treasury shares	(7,507)	(8,502)
Cash dividends paid	(20,024)	(19,303)
Net cash provided by financing activities	119,459	1,360
Increase in cash and cash equivalents	160,964	20,265
Cash and cash equivalents at beginning of year	159,956	167,214
Cash and cash equivalents at end of period	320,920	187,479
Supplemental disclosures of cash flow information:
Cash paid for interest	12,723	13,820
Non cash activities:
Real Estate Owned, Transfer to Real Estate Owned	151	568
Other Significant Noncash Transaction, Value of Consideration Received	7,755	10,970
Consumer Portfolio Segment [Member]
Changes in assets and liabilities:
Increase in prepaid dealer premiums	(219)	(281)
Mortgage Loans on Real Estate [Member]
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of loans in secondary market	$ 1,938	$ 822