Note 3 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Property, Plant and Equipment, Estimated Useful Lives [Table Text Block]

Asset Classification	Estimated Useful Life
Equipment	5 years
Furniture and fixtures	7 years
Software	5 years
Leasehold improvements	Lesser of estimated useful life or lease term

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	December 31,
	2023		2022
	(000's)
Restricted stock units		1,500		900
Stock options		7,876		5,378
Nonvested restricted stock		—		193
Total		9,376		6,471