Leases (Details-2) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Lessee Disclosure [Line Items]
Finance lease assets, net	$ 15,545	$ 15,682
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant, and equipment, net	Property, plant, and equipment, net
Operating lease assets	$ 7,961	$ 5,988
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other deferred assets and other	Other deferred assets and other
Total lease assets	$ 23,506	$ 21,670
Finance lease liabilities - current	$ 1,050	$ 1,066
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Finance lease liabilities - long-term	$ 17,322	$ 17,532
Operating lease liabilities - current	$ 161	$ 171
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Operating lease liabilities - long-term	$ 7,965	$ 5,840
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other deferred liabilities and other	Other deferred liabilities and other
Total lease liabilities	$ 26,498	$ 24,609