Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Sep. 30, 2014
Current assets:
Cash and cash equivalents	$ 115,003	$ 137,534	[1]
Restricted cash	19,168	1,000	[1]
Short-term investments	1,431	1,477	[1]
Accounts receivable, net	49,096	50,458	[1]
Inventories	90,838	85,093	[1]
Deferred tax assets	1,903	1,868	[1]
Other current assets	17,226	17,033	[1]
Total current assets	294,665	294,463	[1]
Property, equipment and leasehold improvements, net	57,266	58,847	[1]
Purchased intangible assets, net	4,399	5,093	[1]
Goodwill	9,178	9,178	[1]
Deferred tax assets	8,617	8,392	[1]
Other assets	28,995	24,369	[1]
Total assets	403,120	400,342	[1]
Current liabilities:
Accounts payable	50,705	54,554	[1]
Accrued compensation and benefits	10,519	9,875	[1]
Accrued expenses	12,795	11,365	[1]
Current portion of long-term debt	195	195	[1]
Total current liabilities	74,214	75,989	[1]
Long-term debt	4,241	4,339	[1]
Other long-term liabilities	5,362	5,456	[1]
Total liabilities	83,817	85,784	[1]
Commitments and contingencies			[1]
Stockholders’ equity:
Common stock	3	3	[1]
Additional paid-in capital	373,639	364,587	[1]
Accumulated deficit	(50,522)	(51,076)	[1]
Accumulated other comprehensive loss	(5,970)	(1,044)	[1]
Total ISSI stockholders’ equity	317,150	312,470	[1]
Noncontrolling interest	2,153	2,088	[1]
Total stockholders’ equity	319,303	314,558	[1]
Total liabilities and stockholders’ equity	$ 403,120	$ 400,342	[1]

[1] Derived from audited financial statements.