Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Allowance for credit losses	$ 2	$ 3
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized (in shares)	425,000,000	450,000,000
Common stock, issued (in shares)	4,259,842	3,844,613
Common stock, outstanding (in shares)	4,259,842	3,844,613