Powershell: Help with array

Hello,
I have the following script:

I need to output the users name and employeeid  - values that are not in CategoryA  and where employeeid values that are not blanks.
 Please help.

$CategoryA = "10","12","15","17"


$UserCount = $EnabledCount = $CatACount =$CatBCount = 0
foreach ($domain in Get-ADForest | select -Expand Domains) {
  Get-ADUser -Server $domain  -Filter * -Property EmployeeID | % {
     $UserCount++;
     if ($_.Enabled) { $EnabledCount++ }
     if ($CategoryA -contains $_.EmployeeID) { $CatACount++ }
       }
}
cls
write-output "Total Users:`t`t$UserCount"
write-output "Users in CategoryA:`t$CatACount"