Nothing happens in that case , because your MM is then 19k (12560 + 0.5x 11348) and your account still 30k (55500 - 0.5x 45000)
Over-the-counter bulletin board stocks and penny stocks, which are stocks that generally trade per share for under $5, and are owned by small companies. All of the previously listed stocks are non-marginable by decree of the Federal Reserve Board.