Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in-Capital [Member]	Accumulated Deficit [Member]	Total
Beginning balance at Dec. 31, 2023	$ 4	$ 250,742	$ (238,058)	$ 12,688
Beginning balance (in shares) at Dec. 31, 2023	3,506,025
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	112	0	112
Net loss	0	0	(3,368)	(3,368)
Ending balance at Mar. 31, 2024	$ 4	250,854	(241,426)	9,432
Ending balance (in shares) at Mar. 31, 2024	3,506,025
Beginning balance at Dec. 31, 2024	$ 4	253,112	(248,144)	4,972
Beginning balance (in shares) at Dec. 31, 2024	4,171,161
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation expense	$ 0	129	0	129
Net loss	0	0	(2,432)	(2,432)
Ending balance at Mar. 31, 2025	$ 4	$ 253,241	$ (250,576)	$ 2,669
Ending balance (in shares) at Mar. 31, 2025	4,171,161