Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets:
Cash and cash equivalents	$ 85,811	$ 43,675
Investment securities available-for-sale, at fair value	682,984	734,318
Loans:
Loans	3,226,325	3,105,036
Allowance for credit losses	(30,287)	(29,831)
Total	3,196,038	3,075,205
Restricted stock, at cost	18,123	21,524
Bank premises and equipment, net	37,971	37,523
Right-of-use asset - operating leases	8,006	8,438
Bank-owned life insurance	108,573	107,831
Pension plan assets, net	19,129	19,097
Deferred income tax benefit	15,338	3,987
Other assets	18,705	17,191
Total assets	4,190,678	4,068,789
Deposits:
Checking	1,479,806	1,400,998
Savings, NOW and money market	1,736,821	1,685,410
Time	328,763	228,837
Total	3,545,390	3,315,245
Short-term borrowings	50,000	125,000
Long-term debt	186,322	186,322
Operating lease liability	10,609	11,259
Accrued expenses and other liabilities	8,896	17,151
Total liabilities	3,801,217	3,654,977
Stockholders' Equity:
Common stock, par value $0.10 per share: Authorized, 80,000,000 shares; Issued and outstanding, 23,106,070 and 23,240,596 shares	2,311	2,324
Surplus	89,362	93,480
Retained earnings	327,785	320,321
Total	419,458	416,125
Accumulated other comprehensive loss, net of tax	(29,997)	(2,313)
Total Stock Holders' Equity	389,461	413,812
Total Liabilities and Equity	4,190,678	4,068,789
Commercial And Industrial [Member]
Loans:
Loans	103,870	90,386
Allowance for credit losses	(1,042)	(888)
SBA Paycheck Protection Program [Member]
Loans:
Loans	12,377	30,534
Allowance for credit losses	(19)	(46)
Commercial Mortgages [Member]
Loans:
Loans	1,870,546	1,736,612
Consumer And Other [Member]
Loans:
Loans	2,021	991
Allowance for credit losses	(13)	(3)
Closed-end [Member] | Residential Mortgages [Member]
Loans:
Loans	1,191,691	1,202,374
Allowance for credit losses	(11,016)	(11,298)
Revolving Home Equity [Member] | Residential Mortgages [Member]
Loans:
Loans	45,820	44,139
Allowance for credit losses	$ (376)	$ (449)