Summary of Significant Accounting Policies - Basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Numerator:
Net (loss) income	$ (7,899)	$ 3,460
Less: (Loss) income allocated to unvested participating securities	(368)	111
Net (loss) income available to common shareholders	$ (7,531)	$ 3,349
Denominator:
Denominator for basic earnings per share - weighted average shares	6,152,000	6,075,000
Effect of dilutive securities:
Denominator for diluted earnings per share - adjusted weighted-average shares and assumed conversions	6,152,000	6,075,000
(Loss) income per share:
Basic (in dollars per share)	$ (1.22)	$ 0.55
Diluted (in dollars per share)	$ (1.22)	$ 0.55
Anti-dilutive securities excluded from computation of earnings per share, amount	0	0