Fair Value (Carrying Amounts and Estimated Fair Values of Company's Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financial Assets:
Interest Bearing Time Deposits with Banks	$ 1,985	$ 250
Loans, Net	3,060,813	2,712,236
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(3,430,021)	(3,072,632)
Time Deposits	(631,396)	(588,483)
Short-term Borrowings	(167,736)	(249,774)
Long-term Debt	(181,950)	(126,635)
Reported Value Measurement
Financial Assets:
Cash and Short-term Investments	103,884	96,550
Interest Bearing Time Deposits with Banks	1,985	250
Loans, Net	3,058,211	2,707,498
Accrued Interest Receivable	18,425	16,634
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(2,798,625)	(2,484,149)
Time Deposits	(631,396)	(588,483)
Short-term Borrowings	(167,736)	(249,774)
Long-term Debt	(181,950)	(126,635)
Accrued Interest Payable	(2,442)	(1,740)
Estimate of Fair Value Measurement
Financial Assets:
Cash and Short-term Investments	103,884	96,550
Interest Bearing Time Deposits with Banks	1,985	250
Loans, Net	3,056,521	2,689,393
Accrued Interest Receivable	18,425	16,634
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(2,798,625)	(2,484,149)
Time Deposits	(624,666)	(586,338)
Short-term Borrowings	(167,736)	(249,774)
Long-term Debt	(182,408)	(128,828)
Accrued Interest Payable	(2,442)	(1,740)
Estimate of Fair Value Measurement \| Level 1
Financial Assets:
Cash and Short-term Investments	59,971	64,549
Interest Bearing Time Deposits with Banks	0	0
Loans, Net	0	0
Accrued Interest Receivable	0	0
Financial Liabilities:
Demand, Savings, and Money Market Deposits	(2,798,625)	(2,484,149)
Time Deposits	0	0
Short-term Borrowings	(128,311)	(204,500)
Long-term Debt	0	0
Accrued Interest Payable	0	0
Estimate of Fair Value Measurement \| Level 2
Financial Assets:
Cash and Short-term Investments	43,913	32,001
Interest Bearing Time Deposits with Banks	1,985	250
Loans, Net	0	0
Accrued Interest Receivable	4,400	4,143
Financial Liabilities:
Demand, Savings, and Money Market Deposits	0	0
Time Deposits	(624,666)	(586,338)
Short-term Borrowings	(39,425)	(45,274)
Long-term Debt	(127,174)	(117,513)
Accrued Interest Payable	(2,376)	(1,718)
Estimate of Fair Value Measurement \| Level 3
Financial Assets:
Cash and Short-term Investments	0	0
Interest Bearing Time Deposits with Banks	0	0
Loans, Net	3,056,521	2,689,393
Accrued Interest Receivable	14,025	12,491
Financial Liabilities:
Demand, Savings, and Money Market Deposits	0	0
Time Deposits	0	0
Short-term Borrowings	0	0
Long-term Debt	(55,234)	(11,315)
Accrued Interest Payable	$ (66)	$ (22)

Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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