Air carrier Captain does not recall seeing the hold line for Runway 36 on Taxiway F at LSE prior to takeoff and believes it may have been crossed without clearance. Reporter suggests a hot spot be added to airport diagram as hold line is well back from runway.

Narrative

We were given clearance by LSE Ground Control to taxi to Runway 36 via Taxiway F. During the taxi out; the First Officer was making the PA announcement and I was monitoring ATC 1. I switched to LSE Tower and told them we would be ready for departure at the end. I got no response and once the First Officer was back on frequency; he also informed the Tower that we were number one for departure. We were cleared for takeoff and shortly after were turned over to Departure Control. In retrospect I believe that I may have taxied past the hold short line for Runway 36 prior to the takeoff clearance being given; although neither LSE Ground Control nor Tower told us we may have done so. I did not remember seeing any hold short lines for Runway 36 and once we departed; I thought that they may have been crossed prior to the takeoff clearance being given. This was my first time as pilot in command at LSE airport. I consulted the airport diagram for LSE and there were no hot spot locations depicted on the chart. There were no wig-wag lights at the departure end of the runway. The hold short lines for Runway 36 are placed extremely far back on Taxiway F which runs parallel to the runway. Update airport diagram for hot spot location at Runway 36 at Taxiway F. I will be much more vigilant taxiing at airports that I am not familiar with.