Another link.. this one to the Sec of State Election return page...also no returns as of 10:10 EST.
http://www.sos.idaho.gov/ELECT/Results/ENR/statewide_total.xml
You can compare them through the night and see if one is ahead of the other.
First returns at 1106PM EST:
US Representative, District 1
DEM Walt Minnick 12 100.0%
REP Harley D. Brown 8 7.4%
REP Michael L. Chadwick 13 12.0%
REP Raul R. Labrador 45 41.7%
REP Allan M Salzberg 3 2.8%
REP Vaughn Ward 39 36.1%