Commitments and Contingencies	3 Months Ended
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Matters In the semiconductor industry, it is not unusual for companies to receive notices alleging infringement of patents or other intellectual property rights of others. The Company has been, and from time-to-time expects to be, notified of claims that it may be infringing patents, maskwork rights or copyrights owned by third parties. If it appears necessary or desirable, the Company may seek licenses under patents that it is alleged to be infringing. Although patent holders commonly offer such licenses, licenses may not be offered and the terms of any offered licenses may not be acceptable to the Company. The failure to obtain a license under a key patent or intellectual property right from a third party for technology used by the Company could cause it to incur substantial liabilities and to suspend the manufacture of the products utilizing the invention or to attempt to develop non-infringing products, any of which could materially and adversely affect the Company’s business and operating results. Furthermore, there can be no assurance that the Company will not become involved in protracted litigation regarding its alleged infringement of third party intellectual property rights or litigation to assert and protect its patents or other intellectual property rights. Any litigation relating to patent infringement or other intellectual property matters could result in substantial cost and diversion of the Company’s resources. GSI Technology Inc. v. Integrated Silicon Solution, Inc., et al. On October 2, 2013, GSI Technology Inc. (GSI) filed a Second Amended Complaint in a lawsuit filed earlier in 2013 solely against defendant United Memories, Inc. in the United States District Court for the Northern District of California. GSI named the Company as a new, second defendant in the Second Amended Complaint. On April 18, 2014, the Court granted the Company's motion to dismiss that complaint in part, leaving claims against the Company for Unfair Competition under California Business & Professions Code 17200, misappropriation of trade secrets, and intentional interference with prospective economic advantage. In the remaining portion of the complaint, GSI alleged that the Company acted together with United Memories, Inc. to harm GSI in connection with a bid requested by Cisco Systems, Inc. and misappropriated alleged GSI trade secrets. GSI seeks damages and injunctive relief. The Company filed an answer on June 2, 2014 and asserted a declaratory relief counterclaim against GSI. Before the Company was named as a defendant, the Court denied motions by GSI against United Memories, Inc. for temporary and preliminary injunctive relief. The Court issued a revised case management order on January 7, 2015 with a scheduled trial date of October 26, 2015. The Company believes it has meritorious defenses to the claims alleged by GSI and intends to defend this suit vigorously. However, there can be no assurance as to the outcome of this matter or any future litigation. Other Legal Proceedings In the ordinary course of its business, the Company has been involved in a limited number of other legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them. Although the outcome of these actions is not presently determinable, the Company believes that the ultimate resolution of these matters will not have a material adverse effect on its financial position, cash flows or results of operations. However, no assurances can be given with respect to the extent or outcome of any such litigation in the future. Commitments to Wafer Fabrication Facilities and Contract Manufacturers The Company issues purchase orders for wafers to various wafer foundries. These purchase orders are generally considered to be cancelable. However, to the degree that the wafers have entered into work-in-process at the foundry, as a matter of practice, it becomes increasingly difficult to cancel the purchase order. As of December 31, 2014, the Company had approximately $19.5 million of purchase orders for which the related wafers had been entered into wafer work-in-process (i.e., manufacturing had begun).

Commitments and Contingencies

Legal Matters

In the semiconductor industry, it is not unusual for companies to receive notices alleging infringement of patents or other intellectual property rights of others. The Company has been, and from time-to-time expects to be, notified of claims that it may be infringing patents, maskwork rights or copyrights owned by third parties. If it appears necessary or desirable, the Company may seek licenses under patents that it is alleged to be infringing. Although patent holders commonly offer such licenses, licenses may not be offered and the terms of any offered licenses may not be acceptable to the Company. The failure to obtain a license under a key patent or intellectual property right from a third party for technology used by the Company could cause it to incur substantial liabilities and to suspend the manufacture of the products utilizing the invention or to attempt to develop non-infringing products, any of which could materially and adversely affect the Company’s business and operating results. Furthermore, there can be no assurance that the Company will not become involved in protracted litigation regarding its alleged infringement of third party intellectual property rights or litigation to assert and protect its patents or other intellectual property rights. Any litigation relating to patent infringement or other intellectual property matters could result in substantial cost and diversion of the Company’s resources.

GSI Technology Inc. v. Integrated Silicon Solution, Inc., et al.

On October 2, 2013, GSI Technology Inc. (GSI) filed a Second Amended Complaint in a lawsuit filed earlier in 2013 solely against defendant United Memories, Inc. in the United States District Court for the Northern District of California. GSI named the Company as a new, second defendant in the Second Amended Complaint. On April 18, 2014, the Court granted the Company's motion to dismiss that complaint in part, leaving claims against the Company for Unfair Competition under California Business & Professions Code 17200, misappropriation of trade secrets, and intentional interference with prospective economic advantage. In the remaining portion of the complaint, GSI alleged that the Company acted together with United Memories, Inc. to harm GSI in connection with a bid requested by Cisco Systems, Inc. and misappropriated alleged GSI trade secrets. GSI seeks damages and injunctive relief. The Company filed an answer on June 2, 2014 and asserted a declaratory relief counterclaim against GSI. Before the Company was named as a defendant, the Court denied motions by GSI against United Memories, Inc. for temporary and preliminary injunctive relief. The Court issued a revised case management order on January 7, 2015 with a scheduled trial date of October 26, 2015. The Company believes it has meritorious defenses to the claims alleged by GSI and intends to defend this suit vigorously. However, there can be no assurance as to the outcome of this matter or any future litigation.

Other Legal Proceedings

In the ordinary course of its business, the Company has been involved in a limited number of other legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them. Although the outcome of these actions is not presently determinable, the Company believes that the ultimate resolution of these matters will not have a material adverse effect on its financial position, cash flows or results of operations. However, no assurances can be given with respect to the extent or outcome of any such litigation in the future.

Commitments to Wafer Fabrication Facilities and Contract Manufacturers

The Company issues purchase orders for wafers to various wafer foundries. These purchase orders are generally considered to be cancelable. However, to the degree that the wafers have entered into work-in-process at the foundry, as a matter of practice, it becomes increasingly difficult to cancel the purchase order. As of December 31, 2014, the Company had approximately $19.5 million of purchase orders for which the related wafers had been entered into wafer work-in-process (i.e., manufacturing had begun).