Note 2 - Principles of Consolidation and Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	March 31,		December 31,
	2024		2023
	(in thousands)
Cash and cash equivalents	$	11,123	$	18,713
Restricted cash, noncurrent		1,000		5
	$	12,123	$	18,718