Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
Financial Assets
Warrant assets	$ 2,481	$ 3,419
Financial Liabilities
Contingent consideration payable	8,530	8,530
Fair Value, Inputs, Level 1 [Member]
Financial Assets
Marketable investments	487	1,034
Financial Liabilities
Contingent consideration payable
Fair Value, Inputs, Level 2 [Member]
Financial Assets
Marketable investments
Financial Liabilities
Contingent consideration payable
Fair Value, Inputs, Level 3 [Member]
Financial Assets
Marketable investments	98	119
Financial Liabilities
Contingent consideration payable	8,530	8,530
Fair Value, Recurring [Member]
Financial Assets
Warrant assets	2,481	3,419
Marketable investments	585	1,153
Financial Liabilities
Contingent consideration payable	8,530	8,530
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets
Warrant assets
Marketable investments	487	1,034
Financial Liabilities
Contingent consideration payable
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets
Warrant assets
Marketable investments
Financial Liabilities
Contingent consideration payable
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets
Warrant assets	2,481	3,419	$ 3,864	$ 2,972
Marketable investments	98	119
Financial Liabilities
Contingent consideration payable	$ 8,530	$ 8,530