Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Components of accrued liabilities
Payable in connection with construction in progress	$ 3,604	$ 2,974
Accrued compensation and related charges	3,199	5,115
Preferred stock dividends payable	2,901	2,901
Accrued income taxes	1,387	539
Other tax payable	933	392
Accrued product warranty	767	743
Accrued professional services	752	880
Current portion of operating lease liabilities	496	488
Advances from customers	435	946
Other personnel-related costs	369	279
Accrual for sales returns	88	48
Other accrued liabilities	1,624	1,752
Accrued liabilities, Total	$ 16,555	$ 17,057