Note 8 - Fair Value Measurements - Assets and Liabilities by Level (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Fair Value, Recurring [Member]
Derivative liabilities — embedded conversion features	$ 197	$ 702
Earn-out Payable		352
Fair Value, Nonrecurring [Member]
Common stock purchase warrants — issued February 12, 2026	203
Fair Value, Nonrecurring [Member] \| Instone Reporting Unit [Member]
Goodwill — Instone reporting unit		17,086
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Recurring [Member]
Derivative liabilities — embedded conversion features	0	0
Earn-out Payable		0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Nonrecurring [Member]
Common stock purchase warrants — issued February 12, 2026	0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Nonrecurring [Member] \| Instone Reporting Unit [Member]
Goodwill — Instone reporting unit		0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Recurring [Member]
Derivative liabilities — embedded conversion features	0	0
Earn-out Payable		0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Nonrecurring [Member]
Common stock purchase warrants — issued February 12, 2026	0
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Nonrecurring [Member] \| Instone Reporting Unit [Member]
Goodwill — Instone reporting unit		0
Fair Value, Inputs, Level 3 [Member]
Derivative liabilities — embedded conversion features	197	702
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Recurring [Member]
Derivative liabilities — embedded conversion features	197	702
Earn-out Payable		352
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member]
Common stock purchase warrants — issued February 12, 2026	$ 203
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Nonrecurring [Member] \| Instone Reporting Unit [Member]
Goodwill — Instone reporting unit		$ 17,086