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Consolidated Balance Sheets (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands | Jun. 30, 2018 | Jun. 30, 2017
--- | --- | ---
Allowance for doubtful accounts | $ 409 | $ 506
Preferred shares, par value (in dollars per share) | $ 0 | $ 0
Preferred shares, authorized shares (in shares) | 1,000,000 | 1,000,000
Preferred shares, issued (in shares) | 0 | 0
Common shares, par value (in dollars per share) | $ 0 | $ 0
Common shares, authorized (in shares) | 40,000,000 | 40,000,000
Common shares, outstanding (in shares) | 25,641,913 | 24,429,223

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