Note 1 - Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Property, Plant and Equipment [Table Text Block]

(in thousands)	Useful life in years			2022			2021
Property and equipment	3	-	5	$	23,075		$	18,283
Internal-use software	3	-	7		1,967			429
Furniture and fixtures	5	-	7		922			319
Building		39			320			308
Property and equipment, gross					26,284			19,339
Accumulated depreciation					(14,278	)		(8,968	)
Property and equipment, net				$	12,006		$	10,371

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

	December 31 2022
(in thousands)	Level 1		Level 2		Level 3		Total Fair Value
Cash equivalents
Money market accounts	$	17,496	$	−	$	−	$	17,496
Marketable securities
Corporate and municipal debt securities		4,973		−		−		4,973
Total assets	$	22,469	$	−	$	−	$	22,469

	December 31, 2021
	Level 1		Level 2		Level 3		Total Fair Value
Cash equivalents
Money market accounts	$	26,866	$	−	$	−	$	26,866
Marketable securities
Corporate and municipal debt securities		−		−		−		−
Total assets	$	26,866	$	−	$	−	$	26,866