How to determine if you have "at risk losses carrying over from a previous year"?

How to determine if you have "at risk losses carrying over from a previous year"? I am a sole proprietor, LLC and "All investment is at risk" The previous year, I had a small net loss of -$2,000 and my husbands W2 income is $175,000.  I also had carryover of unallowed operating expenses of about $3,500 and also excess casualty losses and depreciation of 2,300.  Do I have an at risk loss to carry over?  If not, could you give an example of when I would in the future?