Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 21,705	$ 35,497
Restricted securities	312	5,309
Receivables:
Trade accounts, net	15,767	13,724
Other	1,738	589
Total receivables	17,505	14,313
Deferred preservation costs	29,039	31,570
Inventories	7,320	6,429
Deferred income taxes	5,247	6,096
Prepaid expenses and other assets	2,742	2,276
Total current assets	83,870	101,490
Property and equipment:
Equipment and software	21,664	20,622
Furniture and fixtures	4,163	3,837
Leasehold improvements	29,348	29,111
Total property and equipment	55,175	53,570
Less accumulated depreciation and amortization	42,867	40,484
Net property and equipment	12,308	13,086
Other assets:
Investment in equity securities	6,248	2,594
Restricted securities	5,000
Goodwill	4,220
Patents, less accumulated amortization of $2,871 in 2011 and $2,603 in 2010	2,739	3,282
Trademarks and other intangibles, less accumulated amortization of $1,300 in 2011 and $397 in 2010	17,656	5,601
Deferred income taxes	13,265	9,182
Other	2,558	2,203
Total assets	147,864	137,438
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	4,370	4,243
Accrued compensation	3,946	3,357
Accrued procurement fees	3,982	3,081
Accrued expenses	5,131	4,434
Deferred income	1,890	2,095
Other	2,138	2,118
Total current liabilities	21,457	19,328
Other	4,869	4,168
Total liabilities	26,326	23,496
Commitments and contingencies
Shareholders' equity:
Convertible preferred stock, 460 shares authorized, no shares issued
Common stock $0.01 par value per share, 75,000 shares authorized, 30,067 shares issued in 2011 and 29,950 shares issued in 2010	301	300
Additional paid-in capital	135,003	133,845
Retained deficit	(1,037)	(8,408)
Accumulated other comprehensive loss	(6)	(32)
Treasury stock at cost, 2,265 shares in 2011 and 2,049 shares in 2010	(12,723)	(11,763)
Total shareholders' equity	121,538	113,942
Total liabilities and shareholders' equity	147,864	137,438
Series A Preferred Stock [Member]
Shareholders' equity:
Preferred stock