Note 2 - Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	June 30,		June 30,
	2021		2020
Cash and cash equivalents	$	36,194	$	8,254
Restricted cash included in current assets		98		2,639
Restricted cash included in long-term assets		270		364
Total cash, cash equivalents, and restricted cash shown in the Condensed Consolidated Statements of Cash Flows	$	36,562	$	11,257