Income Taxes - Effective tax rate based upon total income tax provision (benefit) from continuing operations (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes
Federal statutory rate	21.00%	21.00%
Permanent non-taxable income	0.90%	105.80%
PPP Loan Forgiveness	(20.90%)	(0.00%)
Business credits	(2.20%)	(61.70%)
ESOP dividend	(0.00%)	(0.00%)
Stock compensation	(0.10%)	(7.60%)
Foreign-derived intangible income deduction	0.00%	(55.70%)
State taxes, net of federal benefit	0.00%	(28.70%)
Other	0.20%	(34.40%)
Effective tax rate	(1.10%)	(61.30%)