Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Net cash flows from operating activities:
Net income (loss)	$ 4,888	$ (776)
Adjustments to reconcile net income (loss) to net cash from operating activities:
Gain from sale of business components	(7,915)
Depreciation and amortization	4,089	3,111
Non-cash compensation	2,869	3,174
Gain on sale of Medafor investment		(891)
Other non-cash adjustments to income	4,696	2,380
Changes in operating assets and liabilities:
Receivables	2,097	(326)
Inventories and deferred preservation costs	(4,373)	130
Prepaid expenses and other assets	(426)	(1,383)
Accounts payable, accrued expenses, and other liabilities	(87)	(225)
Net cash flows provided by operating activities	5,838	5,194
Net cash flows from investing activities:
Acquisition of On-X, net of cash acquired	(91,152)
Acquisition of PhotoFix technology	(1,226)
Proceeds from sale of business components	19,795
Decrease in restricted cash	5,000
Capital expenditures	(1,608)	(2,192)
Proceeds from sale of Medafor investment		891
Other	30	(487)
Net cash flows used in investing activities	(69,161)	(1,788)
Net cash flows from financing activities:
Proceeds from issuance of term loan	75,000
Repayment of term loan	(469)
Payment of debt issuance costs	(2,289)
Cash dividends paid		(1,700)
Proceeds from exercise of stock options and issuance of common stock	1,027	707
Other	(216)	(884)
Net cash flows provided by (used in) financing activities	73,053	(1,877)
Effect of exchange rate changes on cash	(383)	171
Increase in cash and cash equivalents	9,347	1,700
Cash and cash equivalents, beginning of period	37,588	33,375
Cash and cash equivalents, end of period	$ 46,935	$ 35,075