Summary of changes in restricted stock awards (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended	12 Months Ended
	Mar. 31, 2023	Jan. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Jun. 30, 2023	Dec. 31, 2022
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock					69,569	50,496
Restricted stock					$ 52.03	$ 50.42
Restricted stock					3 years 1 month 5 days	3 years
Restricted stock					$ 3,620	$ 2,546
Restricted stock, vested					(6,211)
Restricted stock					$ 46.49
Restricted stock					$ (289)
Time Based Awards Granted [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock			7,980	7,448	7,980
Restricted stock					$ 53.86
Restricted stock					$ 430
Performance Based Awards Granted [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Restricted stock	2,272	15,032		14,016	17,304
Restricted stock					$ 53.92
Restricted stock					$ 933