Accrued Expenses (Schedule Of Accrued Expenses) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Expenses [Abstract]
Employee benefits	$ 568	$ 615
Income tax	297	278
Sales and other taxes	158	144
Commissions and bonuses	243	298
Deferred rent	111	89
Other	489	737
Total accrued expenses	$ 1,866	$ 2,161