Move SQL Express 2014 database to existing SQL Server 2019 Standard Instance

I have a SQL Express 2014 instance on a server with 1 database that has 1 table. I would like to move that database to an existing SQL Server 2019 Standard instance that is on a different server. The windows server version of the Express instance is 2012R2, the windows server version of the SQL Standard version is 2019, both are 64-bit. I'm a SQL newbie. Can someone point me to a how-to guide that tells me how to move that sql express database? All I've been able to find are instructions for upgrading the SQL server, not moving a database to an existing server.