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Note 23 - Share-based Compensation Expenses (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended	9 Months Ended		12 Months Ended
	Mar. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Jun. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022
Share-Based Payment Arrangement, Expense		$ 51	$ 88		$ 135	$ 6,945
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total		110			110
Forecast [Member]
Share-Based Payment Arrangement, Expense							$ 60	$ 50
Independent Director [Member] \| Restricted Stock [Member] \| The 2020 Omnibus Securities and Incentive Plan, Second Issuance [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	95
Share-Based Payment Arrangement, Expense		20			50
Management Consulting and Advisory Service Providers [Member] \| Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)				400
Share-Based Payment Arrangement, Expense		$ 40			50
Shares Issued, Price Per Share (in dollars per share)				$ 0.35
Issuance of Stock and Warrants for Services or Claims				$ 140
Consulting and Advisory Service Providers [Member] \| Restricted Stock [Member]
Share-Based Payment Arrangement, Expense					$ 40