Note 2 - Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	March 31,		March 31,
	2022		2021
Cash and cash equivalents	$	34,174	$	35,711
Restricted cash included in current assets		1,066		150
Restricted cash included in long-term assets		—		270
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows	$	35,240	$	36,131