CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 10,109	$ 6,280
Restricted cash	138	582
Short-term investments	6,147	973
Accounts receivable, (net of allowance for doubtful accounts of $207 at June 30, 2011 and $336 at December 31, 2010)	7,476	7,907
Inventories, net	1,879	2,555
Prepaid expenses and other current assets	2,324	2,089
Total current assets	28,073	20,386
Long-term investments	486	0
Property and equipment, net	1,278	1,239
Goodwill	14,144	14,144
Other intangible assets, net	7,462	8,254
Investments in non-publicly traded companies	293	267
Other assets	1,627	1,528
Total assets	53,363	45,818
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	2,034	1,893
Accrued expenses and other current liabilities	11,777	13,118
Current portion of 5.45% Convertible Notes due 2011	1,256	3,758
Total current liabilities	15,067	18,769
Restructuring liabilities	10,119	10,317
Total liabilities	25,186	29,086
Stockholders' equity:
Common stock, $.001 par value: 37,500,000 shares authorized; 30,433,563 and 23,548,608 shares issued at June 30, 2011 and December 31, 2010, respectively; 30,412,769 and 23,527,814 shares outstanding at June 30, 2011 and December 31, 2010, respectively	30	24
Additional paid-in capital	409,328	391,689
Accumulated other comprehensive income - currency translation	407	459
Common stock held in treasury (20,794 shares), at cost	(118)	(118)
Accumulated deficit	(381,470)	(375,322)
Total stockholders' equity	28,177	16,732
Total liabilities and stockholders' equity	$ 53,363	$ 45,818