Investments (Details) - Schedule of financial assets measured at fair value on a recurring basis - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Available-for-sale securities — current:
Total		$ 17,888
Money market funds [Member]
Cash equivalents:
Cash equivalents	$ 3,082	3,137
U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current	14,752	14,751
Marketable securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current	1,061
Total	18,895
Level 1 [Member]
Available-for-sale securities — current:
Total		3,137
Level 1 [Member] | Money market funds [Member]
Cash equivalents:
Cash equivalents	3,082	3,137
Level 1 [Member] | U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current
Level 1 [Member] | Marketable securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current	1,061
Total	4,143
Level 2 [Member]
Available-for-sale securities — current:
Total		14,751
Level 2 [Member] | Money market funds [Member]
Cash equivalents:
Cash equivalents
Level 2 [Member] | U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current	14,752	14,751
Level 2 [Member] | Marketable securities [Member]
Available-for-sale securities — current:
Total	14,752
Level 3 [Member]
Available-for-sale securities — current:
Total
Level 3 [Member] | Money market funds [Member]
Cash equivalents:
Cash equivalents
Level 3 [Member] | U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities — current
Level 3 [Member] | Marketable securities [Member]
Available-for-sale securities — current:
Total