SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Deferred Revenue [Abstract]
Sell-through deferred revenue	$ 23,900,000		$ 23,900,000		$ 24,700,000
Sell-through deferred cost	12,700,000		12,700,000		12,500,000
Comprehensive Income [Abstract]
Net income	10,599,000	15,587,000	20,453,000	27,901,000
Other Comprehensive Income
Translation Adjustment	23,000	(5,000)	72,000	(55,000)
Total Comprehensive Income	10,622,000	15,582,000	20,525,000	27,846,000
Accounts Receivable [Abstract]
Accounts receivable trade	33,255,000		33,255,000		30,656,000
Accrued ship and debit and rebate claims	(24,874,000)		(24,874,000)		(24,839,000)
Allowance for doubtful accounts	(312,000)		(312,000)		(275,000)
Other	1,000		1,000		171,000
Total	8,070,000		8,070,000		5,713,000
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid legal fees	2,000,000		2,000,000		4,000,000
Prepaid Inventory (Note 16)	0		0		917,000
Note receivable (Note 4)	3,000,000		3,000,000		0
Prepaid income taxes	1,289,000		1,289,000		1,117,000
Prepaid maintenance agreements	501,000		501,000		554,000
Interest receivable	690,000		690,000		737,000
Other	2,092,000		2,092,000		1,938,000
Total	9,572,000		9,572,000		9,263,000
Other Assets [Abstract]
Prepaid royalty (Note 15)	10,000,000		10,000,000		10,000,000
Investment in third party (Note 15)	7,000,000		7,000,000		7,000,000
Financing lease receivables and deposits (Note 17)	7,191,000		7,191,000		0
Other	1,164,000		1,164,000		288,000
Total	25,355,000		25,355,000		17,288,000
Other Accrued Liabilities [Abstract]
Accrued payment for acquisition (Note 14)	40,000		40,000		6,955,000
Accrued professional fees	1,085,000		1,085,000		1,013,000
Accrued expense for engineering wafers	488,000		488,000		502,000
Advances from customers	410,000		410,000		713,000
Other	344,000		344,000		365,000
Total	$ 2,367,000		$ 2,367,000		$ 9,548,000