Note 7 - Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	December 31, 2021			December 31, 2020
	(In thousands)
Gross accounts receivable	$	2,426		$	2,917
Allowance for uncollectible accounts		(1,677	)		(1,802	)
Total accounts receivable, net	$	749		$	1,115