Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Net income attributable to LGL Group or non-controlling interests	$ 43	$ 157
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Amortization of finite-lived intangible assets	5	5
Stock-based compensation	9	0
Realized loss on sale of marketable securities	0	2,102
Unrealized loss (gain) on marketable securities	3	(2,447)
Deferred income taxes	23	28
Changes in operating assets and liabilities:
Decrease in accounts receivable, net	87	34
(Increase) decrease in inventories, net	(9)	28
Increase in prepaid expenses and other assets	(42)	(111)
Decrease in accounts payable, accrued compensation, income taxes and commissions and other	41	154
Total adjustments	117	(207)
Net cash provided by (used in) operating activities	160	(50)
Cash flows from investing activities:
Proceeds from sale of marketable securities	0	43
Net cash provided by investing activities	0	43
Increase (decrease) in cash and cash equivalents	160	(7)
Cash and cash equivalents at beginning of period	40,711	21,507
Cash and cash equivalents at end of period	40,871	21,500
Supplemental Disclosure:
Income taxes paid	$ 76	$ 134