$250,000 Minimum Assets for Form 5500

I know that if a Plan qualifies for a Form 5500-EZ, you don't have to file if the assets are less than $250,000.  I believe you do have to file a Form 5500 or Form 5500-SF, even if the Plan is less than $250,000 but I just wanted to confirm.

The Plan in question covers:

1) A 40% owner
2) The spouse of the 60% owner

Reading the EZ directions, I do believe they fall under the 5500-EZ.  I'm just trying to cover my bases

Thanks in advance!

it is EZ even if one of the spouses did not have any ownership