Purchasing Home and Appraisal came under expected value

[Paul McLaughlin]

Hello,

 I'm new to BP my name is Paul.  I'm in the process of purchasing a home that was on the market for $164,900.  I offered $140,000 and they accepted the offer.  I just received the appraisal back from the bank and it was appraised at $145,000.  This is concerning to me because I was planning to put money into it thinking I had $25,000 of head room.  Does anyone have any thoughts?  I'm I missing something?

Thank You,