Limited Liability Company ("LLC") Investments - Carrying value (Details) - USD ($) $ in Thousands			1 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Limited Liability Company ("LLC") Investments
Carrying Value	$ 41,167	$ 53,942
Total Shem LLC Investments
Limited Liability Company ("LLC") Investments
Carrying Value	38,667	51,442
Shem Creek Capital Fund V LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 930	$ 1,143
Ownership percentage	7.60%	7.60%
Shem Creek Capital Fund VI LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 3,164	$ 4,290
Ownership percentage	9.90%	9.90%
Shem Creek Capital Fund VII LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 2,900	$ 2,580
Ownership percentage	16.20%	16.20%
Shem Creek Sachem V LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 2,493	$ 2,569
Ownership percentage	49.00%	49.00%
Shem Creek Sachem VI LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 15,205	$ 24,756
Ownership percentage	45.10%	45.90%
Shem Creek Sachem 100 LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 8,975	$ 13,604
Ownership percentage	100.00%	100.00%
Shem Creek Capital LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 5,000	$ 2,500
Ownership percentage	20.00%	20.00%
Cordo CLT Investors LLC
Limited Liability Company ("LLC") Investments
Carrying Value	$ 2,500	$ 2,500
Ownership percentage	7.20%	7.20%	21.60%

Sachem Capital Corp. 10-Q