It won't file that soon. It's not out of money it still has some credit lines left and it's possible with the 20th restructure and cost savings that they can buy more time....but at this point the vultures are circling.
At the start of 2012 it had $250M in the bank and no debt. At the end it had $140M in debt and $140M in cash so it lost $250M in real money last year. They have already said that the restructure in Q1/13 will be $40 - $60M in cash. That and the reduced revenue - the numbers are bad for Q1 and it's only a matter of time now.