Loss per Share (Details) (USD $)	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Basic and Diluted Net Income (Loss) Numerator:
Loss from continuing operations	$ (24,666,000)	$ (20,697,000)
Income (loss) from discontinued operations	(3,359,000)	1,029,000
Net loss	$ (28,025,000)	$ (19,668,000)
Basic and Diluted Net Loss Denominator:
Weighted average number of common shares outstanding	163,042,000	123,624,000
Basic and diluted loss per common share:
Loss from continuing operations	$ (0.15)	$ (0.17)
Net earnings from discontinued operations	$ (0.02)	$ 0.01
Net loss attributable to ISC8 per common share	$ (0.17)	$ (0.16)