Significant Events	3 Months Ended
Mar. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Significant Events On March 11, 2020, the World Health Organization declared COVID-19, the disease caused by the novel coronavirus, a pandemic as a result of the global spread of the coronavirus illness. In response to the outbreak, federal and state authorities in the U.S. introduced various measures to try to limit or slow the spread of the virus, including travel restrictions, nonessential business closures, stay-at-home orders, and strict social distancing. The Corporation activated its Pandemic Preparedness Plan to protect the health of employees and clients, which includes temporarily limiting lobby hours and transitioning the vast majority of the Corporation’s workforce to remote work. Nonetheless, the Corporation has not incurred any significant disruptions to its business activities. The full impact of COVID-19 is unknown and rapidly evolving. It has caused substantial disruption in international and U.S. economies, markets, and employment. The outbreak may have a significant adverse impact on certain industries the Corporation serves, including retail, hospitality, entertainment and restaurants and food services. As of March 31, 2020, the Corporation’s aggregate outstanding exposure in these segments was $171.2 million, or 9.8% of the Corporation’s gross loans and leases. Based on management’s current assessment of the increased inherit risk in the loan portfolio, first quarter 2020 results included an additional $3.1 million in provision for loan and lease losses, pre-tax. Because of the significant uncertainties related to the ultimate duration of the COVID-19 pandemic and its potential effects on clients and prospects, and on the national and local economy as a whole, there can be no assurances as to how the crisis may ultimately affect the Corporation’s loan portfolio. To work with clients impacted by COVID-19, the Corporation is offering short-term (i.e., six months or less) loan modifications on a case by case basis to borrowers who were current in their payments at the inception of the loan modification program. As of March 31, 2020, the Corporation entered into 64 loan modification agreements with respect to $59.8 million of loans outstanding. As of April 22, 2020, the Corporation entered into 267 loan modification agreements with respect to $196.6 million of loans outstanding. For loans subject to the program, each borrower is required to resume making regularly scheduled loan payment at the end of the modification period and the deferred amounts will be moved to the end of the loan term. The loan will not be reported as past due during the deferral period. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was signed into law. The CARES Act is a $2 trillion stimulus package to provide relief to U.S. businesses and consumers struggling as a result of the pandemic. A provision in the CARES Act includes a $349 billion fund for the creation of the Paycheck Protection Program (“PPP”) through the Small Business Administration and Treasury Department. The PPP is intended to provide loans to small businesses to pay their employees, rent, mortgage interest, and utilities. The loans may be forgiven conditioned upon the client providing payroll documentation evidencing their compliant use of funds and otherwise complying with the terms of the program. The Corporation began accepting and processing applications for loans under the PPP on April 3, 2020. As of April 22, 2020, the Corporation had received over 600 applications from existing clients, received conditional approval from the SBA in excess of $300 million, disbursed approximately $280 million in funds, and is expected to generate processing fee income of approximately $8.5 million. Management expects to fund these short-term loans through a combination of excess cash held at the Federal Reserve, short-term Federal Home Loan Bank (“FHLB”) advances, and participation in the Federal Reserve’s Paycheck Protection Program Liquidity Facility (“PPPLF”).

Significant Events

On March 11, 2020, the World Health Organization declared COVID-19, the disease caused by the novel coronavirus, a pandemic as a result of the global spread of the coronavirus illness. In response to the outbreak, federal and state authorities in the U.S. introduced various measures to try to limit or slow the spread of the virus, including travel restrictions, nonessential business closures, stay-at-home orders, and strict social distancing. The Corporation activated its Pandemic Preparedness Plan to protect the health of employees and clients, which includes temporarily limiting lobby hours and transitioning the vast majority of the Corporation’s workforce to remote work. Nonetheless, the Corporation has not incurred any significant disruptions to its business activities.

The full impact of COVID-19 is unknown and rapidly evolving. It has caused substantial disruption in international and U.S. economies, markets, and employment. The outbreak may have a significant adverse impact on certain industries the Corporation serves, including retail, hospitality, entertainment and restaurants and food services. As of March 31, 2020, the Corporation’s aggregate outstanding exposure in these segments was $171.2 million, or 9.8% of the Corporation’s gross loans and leases. Based on management’s current assessment of the increased inherit risk in the loan portfolio, first quarter 2020 results included an additional $3.1 million in provision for loan and lease losses, pre-tax. Because of the significant uncertainties related to the ultimate duration of the COVID-19 pandemic and its potential effects on clients and prospects, and on the national and local economy as a whole, there can be no assurances as to how the crisis may ultimately affect the Corporation’s loan portfolio.

To work with clients impacted by COVID-19, the Corporation is offering short-term (i.e., six months or less) loan modifications on a case by case basis to borrowers who were current in their payments at the inception of the loan modification program. As of March 31, 2020, the Corporation entered into 64 loan modification agreements with respect to $59.8 million of loans outstanding. As of April 22, 2020, the Corporation entered into 267 loan modification agreements with respect to $196.6 million of loans outstanding. For loans subject to the program, each borrower is required to resume making regularly scheduled loan payment at the end of the modification period and the deferred amounts will be moved to the end of the loan term. The loan will not be reported as past due during the deferral period.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) was signed into law. The CARES Act is a $2 trillion stimulus package to provide relief to U.S. businesses and consumers struggling as a result of the pandemic. A provision in the CARES Act includes a $349 billion fund for the creation of the Paycheck Protection Program (“PPP”) through the Small Business Administration and Treasury Department. The PPP is intended to provide loans to small businesses to pay their employees, rent, mortgage interest, and utilities. The loans may be forgiven conditioned upon the client providing payroll documentation evidencing their compliant use of funds and otherwise complying with the terms of the program. The Corporation began accepting and processing applications for loans under the PPP on April 3, 2020. As of April 22, 2020, the Corporation had received over 600 applications from existing clients, received conditional approval from the SBA in excess of $300 million, disbursed approximately $280 million in funds, and is expected to generate processing fee income of approximately $8.5 million. Management expects to fund these short-term loans through a combination of excess cash held at the Federal Reserve, short-term Federal Home Loan Bank (“FHLB”) advances, and participation in the Federal Reserve’s Paycheck Protection Program Liquidity Facility (“PPPLF”).