Note 15 - Segment Reporting - Reconciliation of Loss From Operations to Total Loss (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Income (loss) from operations	$ (4,024)			$ (3,022)			$ (11,600)	$ (16,070)
Interest income	(2)			(6)			(8)	(40)
Interest expense	0			0			0	230
Change in fair value of convertible notes payable	1,502			(1,355)			8,032	(1,014)
Fair Value Adjustment of Warrants	4,963	$ 8,500		(165)			8,481	(174)
Loss on convertible note conversions	772			127			4,239	127
Gain on exercise of warrant liabilities	(5,369)			0			(5,369)	0
Net Income (Loss) Attributable to Parent	(5,890)	$ (17,581)	$ (5,512)	(1,623)	$ (7,897)	$ (6,528)	(28,982)	(16,048)
Loss on issuance of registered direct Common Stock							730	0
Loss on consideration shares and warrants	0			0			1,277	0
Convertible note default penalty	0			0			0	849
Operating Segments [Member]
Income (loss) from operations	(4,024)			(3,022)			(11,600)	(16,070)
Interest income	(2)			(6)			(8)	(40)
Interest expense	0			0			0	230
Change in fair value of convertible notes payable	1,502			(1,355)			8,302	(1,014)
Fair Value Adjustment of Warrants	4,963			(165)			8,481	(174)
Loss on convertible note conversions	772			127			4,239	127
Gain on exercise of warrant liabilities	(5,369)			0			(5,369)	0
Net Income (Loss) Attributable to Parent	(5,890)			$ (1,623)			(28,982)	(16,048)
Loss on issuance of registered direct Common Stock							730	0
Loss on consideration shares and warrants							1,277	0
Convertible note default penalty							0	$ 849
Operating Segments [Member] | NRx Segment [Member]
Income (loss) from operations	(4,039)						(11,616)
Interest income	(1)						(7)
Interest expense	0						0
Change in fair value of convertible notes payable	1,502						8,032
Fair Value Adjustment of Warrants	4,963						8,481
Loss on convertible note conversions	772						4,239
Gain on exercise of warrant liabilities	(5,369)						(5,369)
Net Income (Loss) Attributable to Parent	(5,906)						(28,999)
Loss on issuance of registered direct Common Stock							730
Loss on consideration shares and warrants							1,277
Convertible note default penalty							0
Operating Segments [Member] | Dura Segment [Member]
Income (loss) from operations	15						15
Interest income	(1)						(1)
Interest expense	0						0
Change in fair value of convertible notes payable	0						0
Fair Value Adjustment of Warrants	0						0
Loss on convertible note conversions	0						0
Gain on exercise of warrant liabilities	0						0
Net Income (Loss) Attributable to Parent	$ 16						16
Loss on issuance of registered direct Common Stock							0
Loss on consideration shares and warrants							0
Convertible note default penalty							$ 0