See this IRS fact sheet. If you think that it will continue to have nominal profits, you may want to consider abandoning the S-corp and operating as a sole proprietorship. Sooner or later, the IRS will audit if you continue to fail to take a salary. The penalties and interest that ensue would be significant. You are an employee of the S-Corp, and generally, employees do not work for nothing.
https://www.irs.gov/pub/irs-news/fs-08-25.pdf
