Brought out my 2 Amaryllis' on November 1. I know I'm a month late in doing so. One is already showing leaves, the other looks dead and brown. However, last night I finally saw a leaf down in there trying to work it's way up. For one month and 2 weeks I gave it indoor sunlight from the bathroom window and kept it warm near the heater at night. I never cut the tops off of my bulbs because I don't want to cut an unseen leaf or flower spike in there. Amaryllis' can skip a year of blooming. Just means that next time after your dormant period, you will have beautiful, glittery blooms.
So don't give up on that brown and winter looking bulb just yet. Their still may be some life inside it.