Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended		12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss	$ 400				$ 400		$ 300
Impairment of Intangible Assets, Finite-Lived	0		$ 16,700	$ 3,118	39,445	$ 3,118	3,118
Paper Business and Kitchen Appliance Business [Member]
Impairment of Intangible Assets, Finite-Lived		$ 22,800
Other Noncurrent Assets [Member]
Security Deposit	100				100		100
Prepaid Expenses and Other Current Assets [Member] | Midcap Credit Facility [Member]
Security Deposit	400				400		900
Prepaid Expenses and Other Current Assets [Member] | Letter of Credit [Member]
Security Deposit	2,000				2,000		2,000
Accrued Liability [Member]
Contract with Customer, Refund Liability	$ 400				$ 400		$ 600