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SHAREHOLDERS' EQUITY, Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 23, 2020 | Nov. 30, 2020 | Nov. 30, 2019 | Aug. 31, 2020 | Aug. 30, 2020
2014 Equity Plan [Member] |  |  |  |  |
Shareholders' Equity [Abstract] |  |  |  |  |
Shares reserved for issuance (in shares) |  | 1,600,000 |  |  |
Shares available for grant (in shares) |  | 979,382 |  |  | 1,088,500
2004 Incentive Plan and 2014 Equity Plan [Member] |  |  |  |  |
Number of Options [Roll Forward] |  |  |  |  |
Outstanding, beginning of period (in shares) |  | 661,500 |  |  |
Granted (in shares) |  | 115,000 |  |  |
Net settlement exercised (in shares) |  | (18,000) | 0 |  |
Outstanding, end of period (in shares) |  | 758,500 |  | 661,500 |
Options exercisable (in shares) |  | 540,167 |  |  |
Weighted Average Exercise Price [Roll Forward] |  |  |  |  |
Outstanding, beginning of period (in dollars per share) |  | $ 7.23 |  |  |
Granted (in dollars per share) |  | 9.00 |  |  |
Net settlement exercised (in dollars per share) |  | 3.04 |  |  |
Outstanding, end of period (in dollars per share) |  | 7.59 |  | $ 7.23 |
Options exercisable (in dollars per share) |  | $ 6.73 |  |  |
Stock Options [Abstract] |  |  |  |  |
Weighted average remaining contractual term |  | 6 years 7 months 10 days |  | 6 years 2 months 1 day |
Weighted average remaining contractual term, options exercisable |  | 5 years 6 months 11 days |  |  |
Approximate aggregate intrinsic value, outstanding |  | $ 1,670 |  | $ 1,831 |
Approximate aggregate intrinsic value, options exercisable |  | $ 1,608 |  |  |
Weighted average grant-date fair value (in dollars per share) |  | $ 3.78 |  |  |
Shares issued (in shares) |  | 12,118 |  |  |
Options cancelled (in shares) |  | 5,882 |  |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Employee [Member] |  |  |  |  |
Number of Options [Roll Forward] |  |  |  |  |
Granted (in shares) | 85,000 |  |  |  |
Stock Options [Abstract] |  |  |  |  |
Vesting period | 5 years |  |  |  |
Weighted average grant-date fair value (in dollars per share) | $ 3.93 |  |  |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Employee [Member] | Maximum [Member] |  |  |  |  |
Stock Options [Abstract] |  |  |  |  |
Expiration period | 10 years |  |  |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Executive Officer [Member] |  |  |  |  |
Number of Options [Roll Forward] |  |  |  |  |
Granted (in shares) | 30,000 |  |  |  |
Stock Options [Abstract] |  |  |  |  |
Vesting period | 3 years |  |  |  |
Weighted average grant-date fair value (in dollars per share) | $ 3.37 |  |  |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Executive Officer [Member] | Maximum [Member] |  |  |  |  |
Stock Options [Abstract] |  |  |  |  |
Expiration period | 10 years |  |  |  |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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