Note 4 - Debt Obligations - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt discount, net of amortization	$ (7)	$ 0
Total current portion of debt	86	314
Long-term debt, noncurrent	247	180
Long-term debt	247	180
Debt discount, net of amortization	0	(20)
Total	333	494
Paycheck Protection Program CARES Act [Member]
Notes payable	43	314
Long-term debt, noncurrent	97	0
Long-term debt	97	0
Convertible Note, Maturing On March 1, 2023 [Member]
Convertible notes	50	0
Long-term debt, noncurrent	0	50
Long-term debt	0	50
Economic Injury Disaster Loan [Member]
Long-term debt, noncurrent	150	150
Long-term debt	$ 150	$ 150

Carrying value as of the balance sheet date of the portion of long-term debt due within one year or the operating cycle if longer identified as Convertible Notes Payable. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

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