Cash and cash equivalents (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Line Items]
Bank accounts	$ 45,227,423	$ 32,619,843
Short term deposits	5,484,328	7,738,216
Cash and cash equivalents at end of period	50,711,751	40,358,059
United States dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	24,573,161	15,891,277
Short term deposits	5,484,328	5,324,258
Cayman Islands dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	14,956,162	12,784,358
Short term deposits	0	2,413,958
Bahamian dollar [Member]
Cash and Cash Equivalents [Line Items]
Bank accounts	$ 5,698,100	$ 3,944,208