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Investments - Schedule of debt securities in an unrealized loss position (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |  |  |
Fair Market Value, Less than 12 Months | $ 8,407 | $ 17,303 | $ 44,710
Unrealized Loss, Less than 12 Months | (21) | (78) | (74)
Fair Market Value, More than 12 Months | 9,943 | 9,927 | 0
Unrealized Loss, More than 12 Months | (54) | (135) | 0
Fair Market Value | 18,350 | 27,230 | 44,710
Unrealized Loss | (75) | (213) | (74)
Short Term Marketable Securities [Member] |  |  |
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] |  |  |
Fair Market Value, Less than 12 Months | 8,407 | 17,303 | 32,991
Unrealized Loss, Less than 12 Months | (21) | (78) | (29)
Fair Market Value, More than 12 Months | 9,943 | 9,927 | 0
Unrealized Loss, More than 12 Months | (54) | (135) | 0
Fair Market Value | 18,350 | 27,230 | 32,991
Unrealized Loss | $ (75) | $ (213) | $ (29)

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