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Note 12 - Long-term Deposits and Prepayments (Details Textual)
$ in Thousands
Jun. 30, 2021
USD ($)
Long-term Deposits and Prepayments $ 560
Prepayments for Leasehold Improvements 160
Prepayments for Share Subscription $ 1,000
Entity [Member]  
Equity Securities without Readily Determinable Fair Value, Percent 15.38%