Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Current assets:
Cash and cash equivalents	$ 137,534	$ 119,997
Restricted cash	1,000	0
Short-term investments	1,477	21,558
Accounts receivable, net of allowance for doubtful accounts of $21 in 2014 and $372 in 2013	50,458	46,088
Inventories	85,093	68,469
Deferred tax assets, net	1,868	2,326
Other current assets	17,033	14,602
Total current assets	294,463	273,040
Property and equipment, net	58,847	46,504
Goodwill	9,178	9,178
Purchased intangible assets, net	5,093	6,626
Deferred tax assets, net	8,392	9,942
Other assets	24,369	16,579
Total assets	400,342	361,869
Current liabilities:
Accounts payable	54,554	50,229
Accrued compensation and benefits	9,875	8,072
Accrued expenses	11,365	7,357
Current portion of long-term debt	195	195
Total current liabilities	75,989	65,853
Long-term debt	4,339	4,534
Other long-term liabilities	5,456	8,712
Total liabilities	85,784	79,099
Commitments and contingencies (See Note 16)
Stockholders’ equity:
Preferred stock, $0.0001 par value: Authorized shares—5,000 in 2014 and 2013. Issued and outstanding shares—0 in 2014 and none in 2013.	0	0
Common stock, $0.0001 par value: Authorized shares—70,000 in 2014 and 2013. Issued and outstanding shares—30,832 in 2014 and 29,060 in 2013	3	3
Additional paid-in capital	364,587	343,947
Accumulated deficit	(51,076)	(72,498)
Accumulated other comprehensive income	(1,044)	9,121
Total ISSI stockholders’ equity	312,470	280,573
Noncontrolling interest	2,088	2,197
Total stockholders’ equity	314,558	282,770
Total liabilities and stockholders’ equity	$ 400,342	$ 361,869