Accrued and Other Current Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Accrued and Other Current Liabilities
Advisory costs	$ 225	$ 150
Due to Harvard Bioscience	85
Legal costs	81	577
Audit services	80	59
Other liabilities	60	14
Total accrued and other current liabilities	$ 531	$ 800