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Stock-Based Compensation Plans - Performance Awards (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options expense	$ 0	$ 0
PAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options expense	$ 400,000	$ 100,000
Number of Performance Awards
Outstanding at beginning of period (in shares)	10,852
Granted (in shares)	15,723
Outstanding at end of period (in shares)	26,575	10,852
PAs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchangeable percentage (as a percent)	0.00%
PAs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exchangeable percentage (as a percent)	150.00%
Number of Performance Awards
Outstanding at beginning of period (in shares)	16,278
Granted (in shares)	23,585
Outstanding at end of period (in shares)	39,863	16,278

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