The other soluation is add a poilt light above the door so that way you can able bring the XX-2W/G conductor from one of the luminaries to the junction box above the door and use one of the polit light and there are few diffrent styles you can use something like this.,,
http://www.passandseymour.com/pdf/S38.pdf
{ it is a PDF file so it will take a second to load up }
that is one common way to slove the issue there.
and the other idea is use the stairway luminaire { you can use 7.5 watt bulbs } that will work very well as that too.
Merci,Marc