I have never customized the Thermostat template until today but I seem to be missing a state. My Thermostat is reporting "Off" because I am at or above 70 in my house.
However, "Off" isn't an option in the Thermostat template. I assume "Idle" is the closest option.
Sorry for cross-posting but @ymerj was able to update the Home Assistant Device Bridge and my thermostats are now correctly reporting "Idle" instead of "Off". Thank you.