Reimbursed moving expense: form 3903 gross vs. net

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I moved to another state for job (non-military) and understand that moving expenses are not deductible under federal taxes. But for some state it can still be deductible and form 3903 is required, so trying to file the form anyway. 

Let's say my out of pocket expenses are 1,000 and employer reimbursed pre-tax 1,500 as wage to cover after-tax amount (reported in W2 box 1)

Do I report 1500 or 1000 as expenses on form 3903?  I think 1500 as it should flow to state tax as the part of income that is deducted from total GROSS income.