Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 7,303	$ 8,779
Prepaid expenses and other current assets	105	138
Total current assets	7,408	8,917
Investments		9
Other assets	295	321
Total non-current assets	295	330
Total assets	7,703	9,247
Current liabilities:
Accounts payable	58	73
Accrued expenses and other current liabilities	49	57
Total current liabilities	107	130
Commitments and Contingencies
Stockholders' equity:
Common stock, $.01 par value; 100,000,000 shares authorized; 54,613,949 shares issued at December 31, 2012 and 2011; 50,611,879 shares outstanding net of 4,002,070 treasury shares at par value at December 31, 2012 and 2011	506	506
Additional paid-in capital	152,083	152,083
Accumulated deficit	(144,998)	(143,476)
Accumulated other comprehensive income	5	4
Total stockholders' equity	7,596	9,117
Total liabilities and stockholders' equity	$ 7,703	$ 9,247