BEMIDJI — Delta Dental was up and running in Bemidji when the COVID pandemic hit in 2020. Only a few months earlier, the company began operations in its $11 million, 38,000-square-foot building in the city’s technology park. It was expected to employ 150 call center representatives and financial staff members. But like many companies throughout the nation, Delta’s business plan had to change as employees were forced to work remotely. Fast forwar…