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SHAREHOLDERS' EQUITY, Non-Vested Options (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 31, 2022 | May 31, 2021 | May 31, 2022 | May 31, 2021
Stock Options [Abstract] |  |  |  |
Share-based compensation expense |  |  | $ 491 | $ 404
2004 Incentive Plan and 2014 Equity Plan [Member] |  |  |  |
Number of Options [Roll Forward] |  |  |  |
Non-vested options outstanding, beginning of period (in shares) |  |  | 218,333 |
Granted (in shares) |  |  | 105,000 |
Vested (in shares) |  |  | (87,002) |
Forfeited (in shares) |  |  | (3,333) |
Non-vested options outstanding, end of period (in shares) | 232,998 |  | 232,998 |
Weighted Average Grant Date Fair Value [Abstract] |  |  |  |
Non-vested options outstanding, beginning of period (in dollars per share) |  |  | $ 4.04 |
Granted (in dollars per share) |  |  | 5.16 |
Vested (in dollars per share) |  |  | 4.21 |
Forfeited (in dollars per share) |  |  | 4.21 |
Non-vested options outstanding, end of period (in dollars per share) | $ 4.47 |  | $ 4.47 |
Stock Options [Abstract] |  |  |  |
Share-based compensation expense | $ 100 | $ 100 | $ 500 | $ 400
Unrecognized compensation expenses | $ 700 |  | $ 700 |
Weighted-average period for options expected to vest |  |  | 2 years 6 months |

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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