Just what I gathered from the Q3 report:
“The Company had a valuation performed on its wholly owned subsidiary, Core Wafer Systems, Inc. As a result of the analysis, it was determined that the fair values of the various intangible assets acquired from Core Wafer Systems, Inc. was $4,786,000 at October 25, 2012. The full value of the assets has been impaired.”
Mainly software and intellectual property