Note 20 - Shareholder's Equity (Details Textual) - USD ($) $ / shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Common Stock, Shares Authorized (in shares)	50,000,000	50,000,000
Common Stock, No Par Value (in dollars per share)	$ 0	$ 0
Common Stock, Shares, Outstanding, Ending Balance (in shares)	22,882,614	22,211,069
Dividends, Total	$ 0	$ 0
APIC, Share-based Payment Arrangement, Other, Increase for Cost Recognition	$ 300	1,000
Stock Issued During Period, Shares, Exercise of Warrants (in shares)	350,000
Proceeds from Warrant Exercises	$ 1,750	$ 0
Former Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance (in shares)	247,450	247,450
Preferred Stock Converted into Common Stock [Member]
Conversion of Stock, Shares Converted (in shares)	13,143	40,000
Conversion of Stock, Shares Issued (in shares)	82,143	250,000