Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 33,766	$ 41,489
Restricted securities	528	747
Trade accounts, net	52,940	47,108
Other	2,921	4,324
Total receivables	55,861	51,432
Inventories	53,071	45,478
Deferred preservation costs	32,551	33,174
Prepaid expenses and other	11,613	6,848
Total current assets	187,390	179,168
Property and equipment:
Equipment and software	61,271	48,323
Furniture and fixtures	5,650	5,369
Leasehold improvements	36,173	41,906
Total property and equipment	103,094	95,598
Less accumulated depreciation and amortization	70,944	64,570
Net property and equipment	32,150	31,028
Operating lease right-of-use assets, net	21,994
Goodwill	186,697	188,781
Acquired technology, less accumulated amortization of $24,778 as of December 31, 2019 and $16,815 as of December 31, 2018	115,415	118,184
Other Intangibles, less accumulated amortization of $13,460 as of December 31, 2019 and $10,572 as of December 31, 2018	42,319	41,897
Deferred income taxes	5,481	4,111
Other	14,208	7,922
Total assets	605,654	571,091
Current liabilities:
Accrued expenses	6,733	7,193
Accrued compensation	12,260	10,733
Accounts payable	9,796	7,547
Taxes payable	2,984	2,250
Accrued procurement fees	4,362	3,308
Current portion of finance lease obligation	597	729
Current maturities of operating leases	5,487
Current portion of long-term debt	1,164	1,160
Other	1,812	1,603
Total current liabilities	45,195	34,523
Long-term debt	214,571	215,721
Deferred income taxes	25,844	27,267
Non-current maturities of operating leases	17,918
Non-current finance lease obligations	5,415	5,937
Deferred compensation liability	4,434	3,250
Deferred rent obligations		2,457
Other	6,581	6,869
Total liabilities	319,958	296,024
Commitments and contingencies
Shareholders' equity:
Preferred stock $0.01 par value per share, 5,000 shares authorized, no shares issued	0	0
Common stock $0.01 par value per share, 75,000 shares authorized, 39,018 and 38,463 shares issued as of December 31, 2019 and 2018, respectively	390	385
Additional paid-in capital	271,782	260,361
Retained earnings	36,704	34,984
Accumulated other comprehensive loss	(8,589)	(6,072)
Treasury stock at cost, 1,484 shares as of December 31, 2019 and 2018 , respectively	(14,591)	(14,591)
Total shareholders' equity	285,696	275,067
Total liabilities and shareholders' equity	$ 605,654	$ 571,091