It is probably for the SF-86 application. Do not lie on it, admit to it and you are probably okay, but lie and get caught and you are screwed. Bankruptcy is a flag on an SF-86 but I dont know how bad that is for your situation.
If you do get hired, plan to stay out way past your due date, they are terrible at getting people off the ships as far as I can tell. My ship has several including me. I am bout ready to bail on this job, they are not worth the BS