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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($)
$ / shares in Thousands, $ in Thousands
Mar. 31, 2022
Jun. 30, 2021
Statement of Financial Position [Abstract]    
Accounts receivable, net of allowance for doubtful accounts $ 0 $ 2
Common shares, no par value $ 0 $ 0
Common shares, authorized 50,000,000 50,000,000
Common shares, issued 3,618,663 3,645,660
Common shares, outstanding 3,618,663 3,645,660