Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 36,685	$ 41,489
Restricted securities	492	747
Trade receivables, net	50,550	47,108
Other receivables	4,322	4,324
Inventories	48,403	45,478
Deferred preservation costs	32,352	33,174
Prepaid expenses and other	8,550	6,848
Total current assets	181,354	179,168
Property and equipment, net	30,434	31,028
Operating lease right-of-use assets, net	21,841
Goodwill	183,368	188,781
Acquired technology, net	107,863	118,184
Other intangibles, net	49,806	41,897
Deferred income taxes	3,872	4,111
Other assets	14,064	7,922
Total assets	592,602	571,091
Current liabilities:
Accounts payable	7,455	7,547
Accrued compensation	11,628	10,733
Current portion of long-term debt	1,144	1,160
Current maturities of operating leases	5,270
Taxes payable	2,324	2,250
Accrued expenses and other	14,369	12,833
Total current liabilities	42,190	34,523
Long-term debt	214,793	215,721
Non-current maturities of operating leases	18,046
Deferred income taxes	24,699	27,267
Other	15,373	18,513
Total liabilities	315,101	296,024
Commitments and contingencies
Shareholders' equity:
Preferred stock
Common stock (issued shares of 38,988 in 2019 and 38,463 in 2018)	390	385
Additional paid-in capital	269,192	260,361
Retained earnings	37,385	34,984
Accumulated other comprehensive (loss) income	(14,875)	(6,072)
Treasury stock at cost (shares of 1,484 in each of 2019 and 2018)	(14,591)	(14,591)
Total shareholders' equity	277,501	275,067
Total liabilities and shareholders' equity	$ 592,602	$ 571,091