Brown, dying stem. Rest of plant seems fine?

[jderrick]

Hello -- new to the forum and hope I don't have too newbie of a question. I've had the orchid for a few years, it's been doing fine, it just put out a couple beautiful blooms, and now the stem is dead/dying. There's recent/new leaf growth and the plant's in the same environment its been in for a year (not dry but "sipping" water, diffused light from window it's beside). Any thoughts?

Thanks,
John