SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Held-to-maturity Securities [Table Text Block]

Amortized cost and estimated fair market value of investments classified as held-to-maturity at December 31, 2011, were as follows (in thousands):



			Gross Unrealized
	Amortized Cost		Gains		Losses			Estimated Fair Market Value
Investments due in less than 3 months:
Commercial paper	$	9,849	$	—	$	—		$	9,849
Corporate securities	6,098		9		(1		)	6,106
Total	$	15,947	$	9	$	(1	)	$	15,955

Investments due in 4-12 months:
Corporate securities	$	24,801	$	179	(23		)	$	24,957
Certificates of deposit	10,000		1		—			10,001
Total	$	34,801	$	180	(23		)	$	34,958
Investments due in more than 12 months:
Corporate securities	$	32,041	$	5	$	(178	)	$	31,868
Total	$	32,041	$	5	$	(178	)	$	31,868
Total investment securities	$	82,789	$	194	$	(202	)	$	82,781

Amortized cost and estimated fair market value of investments classified as held-to-maturity at December 31, 2010 were as follows (in thousands):



			Gross Unrealized
	Amortized Cost		Gains		Losses			Estimated Fair Market Value
Investments due in less than 3 months:
Commercial paper	$	7,135	$	—	$	—		$	7,135
Corporate securities	1,508		—		(1		)	1,507
Total	$	8,643	$	—	$	(1	)	$	8,642

Investments due in 4-12 months:
Corporate securities	$	21,255	$	84	$	—		$	21,339
U.S. government securities	5,095		20		—			5,115
U.S. municipal securities	1,005		3		—			1,008
Total	$	27,355	$	107	$	—		$	27,462

Investments due in more than 12 months:
Corporate securities	$	31,760	$	648	$	—		$	32,408
Total	$	31,760	$	648	$	—		$	32,408

Total investment securities	$	67,758	$	755	$	(1	)	$	68,512

Schedule of Inventories [Table Text Block]

Inventories consist of the following (in thousands):



	December 31, 2011		December 31, 2010
Raw materials	$	12,389	$	20,334
Work-in-process	7,841		13,171
Finished goods	31,780		28,572
Total	$	52,010	$	62,077

Schedule of Accounts Receivable [Table Text Block]

Accounts Receivable (in thousands):



	December 31, 2011			December 31, 2010
Accounts receivable trade	$	27,972		$	30,656
Accrued ship and debit and rebate claims	(18,361		)	(24,839		)
Allowance for doubtful accounts	(215		)	(275		)
Other	—			171
Total	$	9,396		$	5,713

Schedule of Prepaid Expenses and Other Current Assets [Table Text Block]

Prepaid Expenses and Other Current Assets (in thousands):



	December 31, 2011		December 31, 2010
Prepaid legal fees	$	3,500	$	4,000
Prepaid inventory	—		917
Prepaid income tax	118		1,117
Prepaid maintenance agreements	669		554
Interest receivable	625		737
Other	2,156		1,938
Total	$	7,068	$	9,263

Schedule of Other Assets, Noncurrent [Table Text Block]

Other Assets (in thousands):



	December 31, 2011		December 31, 2010
Prepaid royalty (Note 12)	$	10,000	$	10,000
Investment in third party (Note 12)	7,000		7,000
Financing lease receivables and deposits (Note 13)	7,558		—
Other	1,953		288
Total	$	26,511	$	17,288

Schedule of Other Accrued Liabilities [Table Text Block]

Other Accrued Liabilities (in thousands):



	December 31, 2011		December 31, 2010
Accrued payment for acquisition (Note 11)	$	—	$	6,955
Accrued professional fees	892		1,013
Accrued expense for engineering wafers	402		502
Advances from customers	596		713
Other	415		365
Total	$	2,305	$	9,548

Schedule of Comprehensive Income (Loss) [Table Text Block]

The components of comprehensive income, net of taxes, are as follows (in thousands):



	Year Ended December 31,
	2011			2010		2009
Net income	$	34,291		$	49,464	$	23,269
Other comprehensive income:
Translation adjustments	(35		)	81		61
Total comprehensive income	$	34,256		$	49,545	$	23,330

Schedule of Property and Equipment [Table Text Block]

Property and equipment consist of the following (in thousands):



	December 31, 2011			December 31, 2010
Land	$	16,754		$	16,754
Construction-in-progress	17,296			10,902
Building and improvements	32,599			30,962
Machinery and equipment	92,919			86,308
Office furniture and equipment	23,897			22,333
	183,465			167,259
Accumulated depreciation	(95,224		)	(82,789		)
Total	$	88,241		$	84,470



Building and improvements	4-40 years or life of lease agreement, if shorter
Machinery and equipment	2-8 years
Office furniture and equipment	4 years

- Definition

Tabular disclosure of all investments in certain debt and equity securities for which the entity has the positive intent and ability to hold until maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 137

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details

- Definition

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

+ References+ Details

- Definition

Tabular disclosure of components of comprehensive income (loss) including, but not limited to: (a) foreign currency translation adjustments; (b) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (c) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (d) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (e) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (f) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (g) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

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