Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 39,977	$ 56,642
Restricted securities	776	699
Receivables:
Trade accounts, net	47,525	27,769
Other	3,916	2,327
Total receivables	51,441	30,096
Inventories	46,684	26,293
Deferred preservation costs	35,671	30,688
Prepaid expenses and other	4,731	2,815
Total current assets	179,280	147,233
Property and equipment, net:
Equipment and software	47,899	37,086
Furniture and fixtures	4,916	4,670
Leasehold improvements	40,280	31,981
Total property and equipment	93,095	73,737
Less accumulated depreciation and amortization	59,516	55,235
Net property and equipment	33,579	18,502
Goodwill	188,305	78,294
Patents, less accumulated amortization of $2,819 in 2017 and $2,702 in 2016	793	1,008
Trademarks and other intangibles, less accumulated amortization of $15,326 in 2017 and $10,733 in 2016	178,637	65,633
Deferred income taxes	1,610
Investment in company owned life insurance	7,489	5,470
Total assets	589,693	316,140
Current liabilities:
Accrued expenses	11,646	5,054
Accrued compensation	10,208	8,815
Accounts payable	9,767	5,744
Taxes payable	4,020	2
Accrued procurement fees	3,577	4,806
Current portion of capital lease obligation	578
Current portion of long-term debt	718	4,562
Other	2,426	1,119
Total current liabilities	42,940	30,102
Long-term debt	218,236	67,012
Deferred income taxes	30,431	7
Capital lease obligation	6,856	11
Deferred compensation liability	3,390	2,600
Deferred rent obligations	2,895	2,355
Other	7,887	5,070
Total liabilities	312,635	107,157
Commitments and contingencies
Shareholders' equity:
Common stock $0.01 par value per share, 75,000 shares authorized, 37,618 shares issued in 2017 and 34,230 shares issued in 2016	376	342
Additional paid-in capital	249,935	187,061
Retained earnings	37,609	34,143
Accumulated other comprehensive income (loss)	1,857	(429)
Treasury stock at cost, shares of 1,387 in 2017 and 1,356 in 2016	(12,719)	(12,134)
Total shareholders' equity	277,058	208,983
Total liabilities and shareholders' equity	$ 589,693	$ 316,140