Financial Instruments (Schedule of Financial Instruments Measured at Fair Value) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	$ 18,079	$ 32,786
Contingent consideration	52,670	52,880
Total liabilities	52,670	52,880
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	7,789	23,251
Contingent consideration	0	0
Total liabilities	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	0	0
Contingent consideration	0	0
Total liabilities	0	0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	10,290	9,535
Contingent consideration	52,670	52,880
Total liabilities	52,670	52,880
Money market funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	5,715	18,182
Money market funds \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	5,715	18,182
Money market funds \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	0	0
Money market funds \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	0	0
Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	2,074	5,069
Certificates of deposit \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	2,074	5,069
Certificates of deposit \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	0	0
Certificates of deposit \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents:	0	0
Endospan Loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Endospan Loans	10,290	9,535
Endospan Loans \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Endospan Loans	0	0
Endospan Loans \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Endospan Loans	0	0
Endospan Loans \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Endospan Loans	$ 10,290	$ 9,535

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- Definition

Fair value portion of asset recognized for present right to economic benefit.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Fair value of financial and nonfinancial obligations.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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