CONSOLIDATED BALANCE SHEETS (unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 43,507	$ 72,660
Accounts receivable, net	3,950	4,582
Inventories	2	1,601
Deferred tax assets	214	383
Prepaid expenses and other current assets	435	695
Total current assets	48,108	79,921
Property and equipment, net	5,374	5,582
Investments	1,362	2,754
Long term deferred tax assets	729	762
Other assets	225	310
Total assets	55,798	89,329
Current liabilities:
Accounts payable	179	1,516
Accrued expenses	100	108
Accrued compensation	600	571
Accrued professional	155	118
Accrued income taxes	57
Deferred revenue	2,622	1,848
Total current liabilities	3,713	4,161
Long-term deferred revenue	76	18
Commitments and contingent liabilities
Stockholders' equity:
Preferred stock, $1.00 par value; 1,000,000 shares authorized, none outstanding
Common stock, $.01 par value; 70,000,000 shares authorized; issued and outstanding 22,804,720 as of September 30, 2014 and 22,574,251 as of December 31, 2013	228	226
Additional paid-in capital	103,657	101,293
Accumulated other comprehensive loss	(71)	(125)
Accumulated deficit	(51,805)	(16,244)
Total stockholders' equity	52,009	85,150
Total liabilities and stockholders' equity	$ 55,798	$ 89,329