Fair Value Measurements (Details 1) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Cash and Cash Equivalents	$ 26,001	$ 46,345
Debt Securities, Available-for-Sale, Current	79,936
Short-term Investments		92,012
Total Cash and Cash Equivalents and Investments	105,937	138,357
Fair Value, Level 1
Fair Value
Cash and Cash Equivalents	26,001	46,345
Debt Securities, Available-for-Sale, Current	70,761
Short-term Investments		73,680
Total Cash and Cash Equivalents and Investments	96,762	120,025
Fair Value, Level 2
Fair Value
Cash and Cash Equivalents	0	0
Debt Securities, Available-for-Sale, Current	9,175
Short-term Investments		18,332
Total Cash and Cash Equivalents and Investments	9,175	18,332
Fair Value, Level 3
Fair Value
Cash and Cash Equivalents	0	0
Debt Securities, Available-for-Sale, Current	0
Short-term Investments		0
Total Cash and Cash Equivalents and Investments	$ 0	$ 0