I'm not at all an authority on this, but I have seen a couple stocks go down to the greys in the past and none of them ever showed a legitimate bid/ask. I don't think there are any MM's to make a market for stocks on the greys, which is why the company has to go through a process to have at least one MM pick them back up.
What I can tell you for certain is that the .038 bid/.07 ask you mention hasn't changed since the day trading was halted on the stock...at least on my trading software.
Maybe someone more knowledgeable can expand upon and/or correct my first paragraph.
Rich
Unless otherwise stated, any and all information I post is my opinion which is subject to change. I accept no responsibility for anyone who chooses to take any action based upon anything I post.