create a folder in powershell - mistake?

Hey guys,

I like to create a Folder by powershell and save some files in it.

Problem: My code doesn't create a Folder, it creates:

My Screen:

$date = Get-Date -format "yyyy-MM-dd"
    if(C:\Documents\$date){
    write-host "true"
    Move-Item $currentFile C:\Documents\$date
    }else{
    write-host "false"
    New-Item C:\Documents\ $date -type directory 
    Move-Item $currentFile C:\Documents\$date
    }