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CONDENSED CONSOLIDATED BALANCE SHEETS (IN THOUSANDS, EXCEPT NUMBER OF SHARES) (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2019 | Jun. 30, 2019
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Statement of Financial Position [Abstract] |  |
Allowance for doubtful accounts | $ 306 | $ 263
Provision for obsolete inventory | $ 680 | $ 673
Common stock, authorized | 15,000,000 | 15,000,000
Common stock, issued | 3,673,055 | 3,673,055
Common stock, outstanding | 3,673,055 | 3,673,055

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