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Note 23 - Share-based Compensation Expenses (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended				12 Months Ended
	Jan. 18, 2023	Jun. 30, 2022 USD ($) $ / shares shares	Mar. 31, 2022 shares	May 31, 2021 $ / shares shares	Mar. 31, 2021 $ / shares shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Share-Based Payment Arrangement, Expense						$ 186	$ 7,028
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total						60
Subsequent Event [Member] \| Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	5
Restricted Stock [Member]
Share-Based Payment Arrangement, Expense						40	240
Executive Officer [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) \| shares			19
Share-Based Payment Arrangement, Expense						60
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) \| shares		80
Share-Based Payment Arrangement, Expense						$ 80
Shares Issued, Price Per Share (in dollars per share) \| $ / shares		$ 1.75
Issuance of Stock and Warrants for Services or Claims		$ 140
Management and Employees [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) \| shares				797
Share-Based Payment Arrangement, Expense							6,660
Shares Issued, Price Per Share (in dollars per share) \| $ / shares				$ 8.35
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) \| shares					6
Share-Based Payment Arrangement, Expense							$ 90
Shares Issued, Price Per Share (in dollars per share) \| $ / shares					$ 15.65