Jones NY Little Black Dress

Little black cocktail dress, plain front mimics back, thin non-adjustable straps, zipper on back (as shown), fully lined, I'm 5'2" and bottom hem hits at knees, simple but elegant look for black-tie events NOTE: I have worn this dress a handful of times but just noticed after last wear that the hem is coming undone. It may have happened at drycleaners. ?? Nothing is ripped or torn, just came out and hanging down. Can be restitched easily.