CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and Cash Equivalents	$ 23,187	$ 11,899
Marketable Securities	54,428	41,413
Accounts and Other Receivables	32	170
Prepaid and Other Current Assets	1,163	1,202
Total Current Assets	78,810	54,684
Property and Equipment, Net	7,566	9,093
Intangible Assets, Net	24,087	24,923
Other Assets	409	329
Goodwill	8,965	8,965
Total Assets	119,837	97,994
Current Liabilities:
Accounts Payable	1,281	935
Accrued Expenses	8,157	7,008
Current Portion of Long-Term Liabilities	399	219
Current Portion of Term Loan	5,294	6,136
Total Current Liabilities	15,131	14,298
Term Loan, less Current Portion	7,326	9,008
Other Long-Term Liabilities	6,365	5,966
Total Liabilities	28,822	29,272
Commitments and Contingent Liabilities
Stockholders' Equity:
Convertible Preferred Stock, $.01 Par Value; 3,000,000 Shares Authorized; No Shares Issued and Outstanding at September 30, 2012 and December 31, 2011
Common Stock, $.001 Par Value; 297,000,000 Shares Authorized; 60,807,350 and 44,210,636 Shares Issued and Outstanding at September 30, 2012 and December 31, 2011, respectively	61	44
Additional Paid-In Capital	335,501	271,032
Accumulated Other Comprehensive Income	2,775	2,652
Accumulated Deficit	(247,322)	(205,006)
Total Stockholders' Equity	91,015	68,722
Total Liabilities and Stockholders' Equity	$ 119,837	$ 97,994