CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents (Note 5)		$ 3,175	$ 3,766
Short-term investments			11
Value added tax receivable, net (Note 7)		314	3,135
Prepaid expenses and other assets (Note 6)		364	972
Current assets held for sale (Note 4)			830
Total current assets		3,853	8,714
Property, plant and equipment, net (Note 8)		22	23
Investments		265	265
Right-of-use assets		9	110
Assets held for sale (Note 4)		667	5,798
Total assets		4,816	14,910
Current liabilities
Accounts payable and other accrued liabilities (Note 10)		1,625	4,899
Other current liabilities (Note 11)		42	374
Current liabilities held for sale (Note 4)		1,970	400
Total current liabilities		3,637	5,673
Other long-term liabilities (Note 11)			28
Liabilities held for sale (Note 4)		3,281	4,096
Total liabilities		6,918	9,797
Commitments and contingencies (Note 16)
Equity (deficit) (Note 14)
Common stock, $.01 par value, 100,000,000 shares authorized; 15,053,048 and 14,084,680 shares issued and outstanding, respectively	[1]	150	141
Additional paid-in capital		552,536	552,160
Accumulated deficit		(554,788)	(547,188)
Shareholders' equity (deficit)		(2,102)	5,113
Total liabilities and equity (deficit)		$ 4,816	$ 14,910

[1] Reflects the one-for-25 reverse stock split that became effective June 9, 2023. Refer to Note 1, “Nature of Operations.”