Statement of Financial Position (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Cash and Cash Equivalents, at Carrying Value	$ 104,253	$ 96,671
Marketable Securities, Current	64,963	70,888
Accounts Receivable, less allowance of $262 in 2011 and $606 in 2012	57,113	41,036
Inventory, Net	63,422	49,501
Income Taxes Receivable	0	1,747
Prepaid Expense and Other Assets	4,301	3,258
Assets, Current	294,052	263,101
Property, Plant and Equipment, Net	11,909	12,530
Goodwill	11,371	4,492
Intangible Assets, Net (Excluding Goodwill)	12,358	7,814
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	34,600	12,240
Other Assets, Noncurrent	2,094	5,734
Assets	366,384	305,911
Accounts Payable, Current	3,932	4,439
Employee-related Liabilities, Current	8,975	5,696
Accrued Royalties	765	660
Product Warranty Accrual, Current	2,024	1,406
Taxes Payable, Current	1,823	0
Deferred Revenue	11,170	7,332
Other Liabilities, Current	8,359	9,324
Liabilities, Current	37,048	28,857
Convertible Debt, Noncurrent	49,010	46,524
Other Liabilities, Noncurrent	9,837	8,752
Liabilities	95,895	84,133
Preferred stock issued and outstanding	0	0
Common Stock, Value, Issued	32	32
Additional Paid in Capital, Common Stock	409,974	405,505
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,085)	(1,462)
Retained Earnings (Accumulated Deficit)	(138,432)	(182,297)
Stockholders' Equity Attributable to Parent	270,489	221,778
Liabilities and Equity	$ 366,384	$ 305,911