Leases (Lease Assets and Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Operating leases:
Other long-term assets, net	$ 2,450	$ 976
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent	Other Assets, Noncurrent
Accrued liabilities	$ 992	$ 751
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued Liabilities, Current	Accrued Liabilities, Current
Other long-term liabilities	$ 1,564	$ 373
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Total operating lease liabilities	$ 2,556	$ 1,124
Finance leases:
Property, plant and equipment	6,665	7,307
Accumulated depreciation	(2,009)	(1,994)
Property, plant and equipment, net	$ 4,656	$ 5,313
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net	Property, plant and equipment, net
Current portion of long-term debt	$ 1,405	$ 2,485
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-term Debt and Lease Obligation, Current	Long-term Debt and Lease Obligation, Current
Long-term debt	$ 1,514	$ 1,599
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term Debt and Lease Obligation	Long-term Debt and Lease Obligation
Total finance lease liabilities	$ 2,919	$ 4,084
Weighted-average remaining lease term
Operating leases	3 years 6 months	1 year 7 months 6 days
Finance leases	1 year 9 months 18 days	1 year 7 months 6 days
Weighted-average discount rate
Operating leases	8.84%	10.86%
Finance leases	8.08%	8.12%