Summary of changes in outstanding options (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Share-Based Payment Arrangement, Option [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding options, shares	159,410	126,880
Outstanding options, weighted average exercise price	$ 22.33	$ 20.00
Outstanding remaining term	4 years 6 months	3 years 6 months
Options outstanding, weighted average fair value	$ 1,381	$ 981
Options exercisable, shares	126,880
Exercisable, weighted average exercise price	$ 20.00
Exercisable remaining term	3 years 2 months 13 days
Exercisable, weighted average fair value	$ 981
Options vested, shares	0
Vested, weighted average fair value	$ 0
Time Based Option Awards Granted [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options outstanding	12,200
Options outstanding weighted avg exercise price	$ 31.44
Options outstanding, weighted average fair value	$ 150
Performance Based Option Awards Granted [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Options outstanding	20,330
Options outstanding weighted avg exercise price	$ 31.44
Options outstanding, weighted average fair value	$ 250