Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 56,642	$ 37,588
Restricted securities	699	830
Receivables:
Trade accounts, net	27,769	23,419
Other	2,327	3,253
Total receivables	30,096	26,672
Inventories	26,293	14,643
Deferred preservation costs	30,688	24,741
Prepaid expenses and other	2,815	5,189
Total current assets	147,233	109,663
Property and equipment, net:
Equipment and software	37,086	28,608
Furniture and fixtures	4,670	4,483
Leasehold improvements	31,981	30,902
Total property and equipment	73,737	63,993
Less accumulated depreciation and amortization	55,235	52,509
Net property and equipment	18,502	11,484
Other assets:
Restricted cash		5,000
Goodwill	78,294	11,365
Patents, less accumulated amortization of $2,702 in 2016 and $2,664 in 2015	1,008	1,417
Trademarks and other intangibles, less accumulated amortization of $10,733 in 2016 and $7,997 in 2015	65,633	18,480
Deferred income taxes		18,188
Other	5,470	5,582
Total assets	316,140	181,179
Current liabilities:
Accounts payable	5,744	4,590
Accrued compensation	8,815	6,335
Accrued procurement fees	4,806	4,445
Accrued expenses	5,054	2,847
Current portion of long-term debt	4,562
Other	1,121	1,388
Total current liabilities	30,102	19,605
Long-term debt	67,012
Deferred compensation liability	2,600	1,927
Deferred rent obligations	2,355	1,735
Other	5,088	2,661
Total liabilities	107,157	25,928
Commitments and contingencies
Shareholders' equity:
Common stock $0.01 par value per share, 75,000 shares authorized, 34,230 shares issued in 2016 and 29,766 shares issued in 2015	342	298
Additional paid-in capital	187,061	142,888
Retained earnings	34,143	23,365
Accumulated other comprehensive loss	(429)	(76)
Treasury stock at cost, 1,356 shares in 2016 and 1,265 shares in 2015	(12,134)	(11,224)
Total shareholders' equity	208,983	155,251
Total liabilities and shareholders' equity	$ 316,140	$ 181,179