Note 4 - Goodwill and Other Intangible Assets - Schedule of Finite-lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Balance	$ 501	$ 1,173
Additions	71	64
Amortization	150	176
Abandonment Loss		560
Balance	422	501
Customer Relationships [Member]
Balance	360	507
Additions	0	0
Amortization	144	147
Abandonment Loss		0
Balance	216	360
Trade Names [Member]
Balance	0	589
Additions	0	0
Amortization	0	29
Abandonment Loss		560
Balance	0	0
Patents [Member]
Balance	141	77
Additions	71	64
Amortization	6	0
Abandonment Loss		0
Balance	$ 206	$ 141