Note 4 - Cash, Cash Equivalents, and Restricted Cash (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Cash, Cash Equivalents, and Restricted Cash [Table Text Block]

	December 31,		December 31,
	2021		2020
	(in thousands)
Cash	$	8,343	$	6,679
Money Market		5,287		9,684
Commerical Paper		4,499		-
Total cash and cash equivalents	$	18,129	$	16,363
Restricted Cash		1,154		1,166
Total	$	19,283	$	17,529