Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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-Name Accounting Standards Codification

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-SubTopic 10

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the cost method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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-Name Accounting Standards Codification

-Topic 325

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This item represents the gain (loss) realized during the period from the sale of investments accounted for under the cost method of accounting and any losses recognized thereon for impairments of other than a temporary nature.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 9

-Article 5

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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-Publisher FASB

-Name Accounting Standards Codification

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The cash outflow for securities or other assets acquired, which qualify for treatment as an investing activity and are to be liquidated, if necessary, beyond the current operating cycle. Includes cash flows from securities classified as trading securities that were acquired for reasons other than sale in the long-term.

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The cash inflow from sales of all investments, including securities and other assets, having ready marketability and intended by management to be liquidated, if necessary, beyond the current operating cycle.

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Price of a single share of a number of saleable stocks of a company.

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The number of shares of investment classified as available-for-sale securities sold.

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Percentage of voting equity interests in the investee held by the entity.

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The cash received from investment which was recorded as a reduction to offset the investment.

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Represents the percentage of issued and outstanding stock of the third party owned by investee.

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Represents the number of shares of stock received by the reporting entity in exchange for an investment originally owned by the reporting entity.

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CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS (Long-term Investments - Narrative) (Details) (USD $)	12 Months Ended		0 Months Ended	3 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended			3 Months Ended						1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Nov. 14, 2014	Sep. 30, 2014	Mar. 31, 2007	Dec. 31, 2008	Oct. 31, 2004	Dec. 31, 2012	Mar. 31, 2006	Aug. 31, 2005	May 31, 2005	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2009	Dec. 31, 2014	Mar. 31, 2011	Mar. 31, 2010	Sep. 30, 2004	Feb. 28, 2015	Jun. 30, 2011
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Per share price of investment	$ 2.83us-gaap_SharePrice														$ 2.83us-gaap_SharePrice
Fair value of investment	$ 50,499,000us-gaap_AvailableForSaleSecurities	53,971,000us-gaap_AvailableForSaleSecurities													$ 50,499,000us-gaap_AvailableForSaleSecurities
Unrealized gain from available-for-sale investments	673,000
Xalted Networks [Member] \| Maximum [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Investment, ownership interest (as a percent)	10.00%	10.00%
Cortina [Member] \| Cost method investment [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Investment, ownership interest (as a percent)			1.00%
Realized loss on disposal				1,500,000
Cortina [Member] \| Cost method investment [Member] \| Series D preferred convertible stock [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Shares received in exchange for investment					3,600,000	400,000
Per share price of investment					$ 0.837	$ 0.837
Investment, ownership interest (as a percent)		1.00%
GCT SemiConductor, Inc. [Member] \| Cost method investment [Member] \| Series D preferred convertible stock [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Payments to acquire investments							3,000,000
Other-than-temporary impairment charge								2,200,000
Xalted Networks [Member] \| Cost method investment [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Payments to acquire investments									300,000	1,000,000	2,000,000
Other-than-temporary impairment charge	300,000											800,000	500,000	1,700,000
SBI [Member] \| Cost method investment [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Payments to acquire investments						500,000		600,000								700,000	700,000
Investment, ownership interest (as a percent)	2.00%	2.00%				2.00%
Cash received from investment which was recorded as a reduction to offset the investment															100,000
ImmenStar, Inc. [Member] \| Cost method investment [Member] \| Series A preferred stock [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Payments to acquire investments																		2,000,000
Cash received in exchange for investment					1,800,000	200,000
Kranem Corporation [Member] \| Xalted Networks [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Issued and outstanding stock ownership percentage																				35.00%
Kranem Corporation [Member] \| Cost method investment [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Other-than-temporary impairment charge	20,000
Inphi Corporation [Member] \| Available for sale [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Shares received in exchange for investment			124,395
Fair value of investment	2,300,000														2,300,000
Unrealized gain from available-for-sale investments	500,000
Inphi Corporation [Member] \| Available for sale [Member] \| Subsequent event [Member]
CASH, CASH EQUIVALENTS AND SHORT AND LONG TERM INVESTMENTS [Line Items]
Cash received in exchange for investment																			$ 2,400,000
Shares of investment classified as available-for-sale securities sold																			124,395