Shareholders' Equity - Shareholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period			$ 21,331
Foreign currency translation adjustment	$ (10)	$ (1)	(23)	$ (3)
Net loss	(4,572)	(2,820)	(7,406)	(4,718)
Balance, end of period	14,946	25,552	14,946	25,552
Common stock and additional paid-in capital [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	32,726	31,608	31,696	46,071
Dividends declared	0	0	0	(14,496)
Issuance of common stock, net	0	0	1,000	0
Share-based compensation expense	21	39	44	65
Proceeds from employee stock purchase plan	(7)	(7)	0	0
Balance, end of period	32,740	31,640	32,740	31,640
Accumulated other comprehensive loss [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(319)	(290)	(306)	(310)
Unrealized loss on available-for-sale securities, net of tax	0	(3)	0	19
Foreign currency translation adjustment	(10)	(1)	(23)	(3)
Balance, end of period	(329)	(294)	(329)	(294)
Accumulated deficit [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance, beginning of period	(12,893)	(2,972)	(10,059)	(1,076)
Net loss	(4,572)	(2,822)	(7,406)	(4,718)
Balance, end of period	$ (17,465)	$ (5,794)	$ (17,465)	$ (5,794)