Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net cash flows from operating activities:
Net loss	$ (6,665)	$ (297)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation and amortization	4,898	4,351
Non-cash compensation	2,564	1,850
Deferred income taxes	(265)	(424)
Other non-cash adjustments to net loss	2,927	737
Changes in operating assets and liabilities:
Receivables	3,557	(3,292)
Inventories and deferred preservation costs	(2,874)	1,396
Prepaid expenses and other assets	982	627
Accounts payable, accrued expenses, and other liabilities	(2,489)	(3,787)
Net cash flows provided by operating activities	2,635	1,161
Net cash flows from investing activities:
Capital expenditures	(2,539)	(1,194)
Other	(364)	(233)
Net cash flows used in investing activities	(2,903)	(1,427)
Net cash flows from financing activities:
Proceeds from revolving line of credit	30,000
Repayment of term loan	(691)	(696)
Proceeds from exercise of stock options and issuance of common stock	1,064	2,029
Redemption and repurchase of stock to cover tax withholdings	(1,712)	(2,376)
Other	(146)	(172)
Net cash flows provided by (used in) financing activities	28,515	(1,215)
Effect of exchange rate changes on cash, cash equivalents, and restricted securities	1,336	320
Increase (decrease) in cash, cash equivalents, and restricted securities	29,583	(1,161)
Cash, cash equivalents, and restricted securities, beginning of year	34,294	42,236
Cash, cash equivalents, and restricted securities, end of year	$ 63,877	$ 41,075