From the Q1 results news release there was a cash payment for a final shipment in the month received April 3nd. I would expect cash for the quarter to be up or flat depending on the final impact of the blown transformer on production.
"The Company ended the quarter with a working capital of $10.1 million, as compared with a working capital of $10.7 million at December 31, 2012. Cash at the end of the quarter totaled $8.7 million as compared to $24.3 at the end of the previous quarter as a result timing of the last shipment of the quarter which occurred on March 31, 2013. This shipment had a value of $16.2 million, of which the 90% provisional payment was received on April 3, 2013 bringing cash resources to $23.3 million."