Income Taxes - Reconciliation of Taxes Computed at the Corporate Federal Income Tax Rate to the Reported Income Tax (provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Pre-tax net book income (loss)	$ 15,656	$ (5,535)	$ 10,503
Statutory federal income tax (provision) benefit	(3,288)	1,162	(2,206)
State income tax (provision) benefit	(224)	(16)	(397)
2018/2019 carryback	0	2,664	0
2020 carryback	0	2,642	0
Return to provision adjustments	(88)	13	285
Other	(168)	65	22
Total (provision for) benefit from income taxes	$ (3,768)	$ 6,530	$ (2,296)
Effective income tax rate	24.00%	118.00%	22.00%
Effective income tax rate excluding adjustment		22.00%