Stock Based Compensation Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Apr. 28, 2015
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised	$ 1,200	$ 37	$ 3,700	$ 203
Share-based compensation expense	0	3	0	$ 10
Unrecognized share-based compensation expense	0		$ 0
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock grants			500	7,946
Share-based compensation expense	130	125	$ 269	$ 267
Weighted average grant date fair value, granted			$ 22.10
Fair value of vested shares	65	$ 149	$ 371	$ 353
Unrecognized share-based compensation expense	$ 761		$ 761
Recognition period			1 year 6 months
Restricted Stock Awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting term			2 years
Restricted Stock Awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting term			5 years
2015 Plan | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance					976,211
Number of shares available for grant	323,185		323,185
Vesting term			5 years
Expiration term			10 years
2015 Plan | Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Price of stock expressed in fair value percentage			100.00%
2015 Plan | Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of award			10 years
2006 Plan | Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	1,490,700		1,490,700