Note 5 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

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

	March 31, 2024
	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (a)	$	40,580	$	—	$	—	$	40,580
Marketable securities:
Equity securities		19		—		—		19
Total marketable securities		19		—		—		19
Total	$	40,599	$	—	$	—	$	40,599

	December 31, 2023
	Level 1		Level 2		Level 3		Total
Cash and cash equivalents (a)	$	40,229	$	—	$	—	$	40,229
Marketable securities:
Equity securities		22		—		—		22
Total marketable securities		22		—		—		22
Total	$	40,251	$	—	$	—	$	40,251