5. FAIR VALUE MEASUREMENT (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Aug. 31, 2012	Aug. 31, 2011
Fair Value Measurement Details 1
Fair value of December 2009 direct offering warrants (including placement agent warrants) at beginning of the fiscal years	$ 2.9	$ 5.9	$ 5.8
December 2009 direct offering warrants exercised	(0.5)	(4.8)	(2.7)
Adjustment to mark to market common stock warrants	0.2	1.8	2.8
December 2009 direct offering common stock warrant liability at fair value at end of period	2.6	2.9	5.9
Fair value of August 2010 private placement warrants (including broker warrants) at beginning of period	14.4	17.7	9.9
August 2010 private placement warrants exercised	(1.9)	(4.7)	(0.7)
Adjustment to mark to market common stock warrants	1.3	1.4	8.5
August 2010 private placement common stock warrant liability at fair value at end of period	13.8	14.4	17.7
Total warrant liability at end of period	$ 16.4	$ 17.3	$ 23.6