CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash	$ 14,863	$ 6,520
Other current assets	299	511
Assets held for sale	55	90
Total assets	15,217	7,121
Current liabilities:
Accounts payable	188	93
Accrued expenses and other current liabilities	744	1,215
Total current liabilities	932	1,308
Accrued rent liability	512	558
Total liabilities	1,444	1,866
Commitments and contingencies
Stockholders' equity:
Preferred stock - $.01 par value, authorized 3,000,000 shares; no shares issued and outstanding at March 31, 2014 and December 31, 2013	0	0
Common stock - $.01 par value, authorized 170,000,000 shares; issued and outstanding 44,093,827 shares at March 31, 2014 and 44,085,870 shares at December 31, 2013	441	441
Additional paid-in capital	134,506	134,512
Accumulated deficit	(121,174)	(129,698)
Total stockholders' equity	13,773	5,255
Total liabilities and stockholders' equity	$ 15,217	$ 7,121