Non-denominational community church? That could mean almost anything...
I did a search and couldn’t find anything definitive. It looks to me that it’s just a standard Christian church based on the pastor’s interpretation of the Bible. There are a bunch like that here in AZ. They often follow the general Catholic/Christian teachings without the ritual/dogmatic aspects of Catholicism.
Not meant as a slam to Catholics...I was raised/are/kinda one.
There are a lot of those across America. They are usually people who have become disenchanted with the main-line denominations. These “community” churches seem to them like safe “unauthoritative” places to worship. In some towns they become “the” place to belong.