CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 111,795,229	$ 20,368,852
Short-term investments	234,294,041	52,794,545
Accounts receivable	10,726,524	7,247,873
Inventory	3,842,729	2,209
Other current assets	1,645,504	1,986,030
Total current assets	362,304,027	82,399,509
PROPERTY AND EQUIPMENT, net	10,883,939	9,711,093
ACQUIRED TECHNOLOGY, net	390,795	0
OTHER ASSETS	298,964	216,529
TOTAL ASSETS	373,877,725	92,327,131
CURRENT LIABILITIES:
Accounts payable	4,776,446	2,155,489
Accrued expenses	9,019,722	6,906,289
Deferred revenue	5,534,176	5,323,154
Stock warrant liability (Note 2)	0	10,659,755
Other current liabilities	186,952	0
Total current liabilities	19,517,296	25,044,687
DEFERRED REVENUE	3,873,539	2,775,024
RETIREMENT PLAN BENEFIT LIABILITY	8,259,690	7,077,901
Total liabilities	31,650,525	34,897,612
COMMITMENTS AND CONTINGENCIES (Note 12)
SHAREHOLDERS' EQUITY:
Common Stock, par value $0.01 per share, 100,000,000 shares authorized, 46,113,296 and 38,936,571 shares issued and outstanding at December 31, 2011 and 2010, respectively	461,133	389,366
Additional paid-in capital	561,492,336	280,102,227
Accumulated deficit	(213,870,962)	(217,026,115)
Accumulated other comprehensive loss	(5,857,307)	(6,037,959)
Total shareholders' equity	342,227,200	57,429,519
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	373,877,725	92,327,131
Series A Nonconvertible Preferred Stock [Member]
SHAREHOLDERS' EQUITY:
Preferred Stock, par value $0.01 per share, 5,000,000 shares authorized, 200,000 shares of Series A Nonconvertible Preferred Stock issued and outstanding (liquidation value of $7.50 per share or $1,500,000)	$ 2,000	$ 2,000