Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Share-based Awards and Cash-based Awards - Schedule of Outstanding Restricted Shares Issued to Non-employee Directors (Details)

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Note 7 - Share-based Awards and Cash-based Awards - Schedule of Outstanding Restricted Shares Issued to Non-employee Directors (Details) - Restricted Stock [Member]
Mar. 31, 2021
shares
Awards expected to vest by period (in shares) 154,128
Vesting in 2021 [Member]  
Awards expected to vest by period (in shares) 138,676
Vesting in 2022 [Member]  
Awards expected to vest by period (in shares) 15,452