SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Deferred Revenue [Abstract]
Net product sales to distributors, percentage	73.00%	71.00%
Sell-through deferred revenue	$ 21,700,000	$ 16,700,000
Sell-through deferred cost	10,400,000	8,800,000
Accounts Receivable [Abstract]
Accounts receivable trade	41,172,000	27,972,000
Accrued ship and debit and rebate claims	(22,949,000)	(18,361,000)
Allowance for doubtful accounts	(257,000)	(215,000)
Total	17,966,000	9,396,000
Prepaid Expenses and Other Current Assets [Abstract]
Prepaid legal fees	1,750,000	3,500,000
Prepaid income taxes	659,000	118,000
Prepaid maintenance agreements	317,000	669,000
Interest receivable	495,000	625,000
Other receivables	1,310,000	0
Supplier Prepayment	1,400,000	0
Other	1,827,000	2,156,000
Total	7,758,000	7,068,000
Other Assets [Abstract]
Prepaid royalty - SemiSouth (Note 15)	10,000,000	10,000,000
Investment in SemiSouth (Note 15)	7,000,000	7,000,000
Note receivable, net of interest discount - SemiSouth (Note 15)	12,678,000	0
Financing lease receivables and deposits - SemiSouth (Note 16)	6,613,000	7,558,000
SemiSouth purchase option (Note 15)	6,216,000	0
Other	873,000	1,953,000
Total	$ 43,380,000	$ 26,511,000