Stage door at 92nd St Y?

At the 92nd St Y, is there a stage door where there might be a chance to meet performers after the show (if they have the time and are so inclined etc), and if so, where is it located exactly? I'm not talking about book signings that would take place inside, but music performers or panelists that don't have that type of "pre-set meet & greet opportunities". 

Thanks in advance for any advice.

The one time I went to the 92nd Street Y for a musical performance, everyone came out through the lobby and was very nice about stopping and chatting.