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Consolidated Statements Of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Net cash flows from operating activities:    
Net income $ 7,881 $ 1,369
Adjustments to reconcile net income to net cash from operating activities:    
Gain from sale of business components (7,915)  
Depreciation and amortization 6,248 4,539
Non-cash compensation 4,617 3,727
Gain on sale of Medafor investment   (891)
Other non-cash adjustments to income 5,595 3,314
Changes in operating assets and liabilities:    
Receivables 3,729 (1,580)
Inventories and deferred preservation costs (5,739) (692)
Prepaid expenses and other assets (46) (1,267)
Accounts payable, accrued expenses, and other liabilities 304 1,508
Net cash flows provided by operating activities 14,674 10,027
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 (3,511) (3,186)
Proceeds from sale of Medafor investment   891
Other (12) (508)
Net cash flows used in investing activities (71,106) (2,803)
Net cash flows from financing activities:    
Proceeds from issuance of term loan 75,000  
Repayment of term loan (1,406)  
Payment of debt issuance costs (2,289)  
Cash dividends paid   (2,553)
Proceeds from exercise of stock options and issuance of common stock 2,116 1,408
Other (28) (809)
Net cash flows provided by (used in) financing activities 73,393 (1,954)
Effect of exchange rate changes on cash (418) (148)
Increase in cash and cash equivalents 16,543 5,122
Cash and cash equivalents, beginning of period 37,588 33,375
Cash and cash equivalents, end of period $ 54,131 $ 38,497