Hey Tenacious, I didn't like how it went down either but I guess that the cash situation really forced IDM's hand. I'm sure that the executives/board tried to drum up a better bid because they all have skin in the game. Walbert has approx. 200k shares of options that exercise at 3.18 so they are worthless and Palo Alto has about a million warrants that will be out of the money as well; though I'm not 100% certain what happens to those stock options.
That being said, there is still a chance that a better deal comes along but it is a long shot. Good Luck my friend!