Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2023	$ 53	$ (580)	$ 46,349	$ (7,060)	$ 38,762	$ 1,920	$ 40,682
Net income attributable to LGL Group or non-controlling interests	0	0	0	432	432	90	522
Stock-based compensation	0	0	36	0	36	0	36
Exercise of warrants, net of costs	0	0	0	0	0	0	0
Repurchases of common stock	0	0	0	0	0	0	0
Balance at Dec. 31, 2024	53	(580)	46,385	(6,628)	39,230	2,010	41,240
Net income attributable to LGL Group or non-controlling interests	0	0	0	688	688	67	755
Stock-based compensation	0	0	61	0	61	0	61
Exercise of warrants, net of costs	8	0	3,867	0	3,875	0	3,875
Repurchases of common stock	0	(366)	0	0	(366)	0	(366)
Balance at Dec. 31, 2025	$ 61	$ (946)	$ 50,313	$ (5,940)	$ 43,488	$ 2,077	$ 45,565