Leases - Supplemental Balance Sheet Information Related to Operating and Finance Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use assets	$ 6,488	$ 7,176
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Finance lease right-of-use assets	$ 77	$ 158
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Total right-of use assets	$ 6,565	$ 7,334
Operating lease liabilities	$ 1,595	$ 1,504
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued and Other Current Liabilities	Accrued and Other Current Liabilities
Finance lease liabilities	$ 71	$ 84
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued and Other Current Liabilities	Accrued and Other Current Liabilities
Operating lease liabilities	$ 5,576	$ 5,946
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Warranty Reserve and Other Long-term Liabilities	Warranty Reserve and Other Long-term Liabilities
Finance lease liabilities	$ 28	$ 77
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Warranty Reserve and Other Long-term Liabilities	Warranty Reserve and Other Long-term Liabilities
Total lease liabilities	$ 7,270	$ 7,611
Weighted average remaining lease term (years)
Operating leases	4 years	5 years
Finance leases	2 years	2 years
Weighted average discount rate
Operating leases	8.16%	7.75%
Finance leases	6.90%	6.15%