T-SQL (SS2K8) :: Select All CustomerIDs Where Their Last PaymentDate Is More Than 12 Months Ago

I have the following query:

;WITH CTE_LastOrder (CustomerID, LastOrderDate) As
(
SELECT CustomerID, MAX(PaymentDate) LastOrderDate
FROM [Order]
GROUP By CustomerId
)
SELECT * from dbo.Customer C
JOIN CTE_LastOrder LO ON C.CustomerId = LO.CustomerId
WHERE LO.LastOrderDate > (dateAdd(YEAR,-1, GetDate()))

That should select all customers from the customers table where they haven't had a Paid Order (ascertained via PaymentDate not being null) in the last 12 months - this could also include customers who don't appear in the Order table at all.

The query is giving me results but shows a LastOrderDate for date ranges in 2014..