Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Cash and cash equivalents
Money market funds	$ 11,452	$ 3,563
Cash deposits	10	2
Total cash and cash equivalents	11,462	3,565
Short-term investments
Bonds (held-to-maturity)	5,944	2,552
Equity securities (available for sale)	180	139
Total short-term investments	6,124	2,691
Long-term investments
Equity securities (available for sale)	3,809	4,354
Bonds (held-to-maturity)	42	3,575
Mutual funds (available for sale)	1,773	236
Total long-term investments	5,624	8,165
Total cash, cash equivalents and short and long-term investments	$ 23,210	$ 14,421

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