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SHAREHOLDERS' EQUITY, Equity Compensation Plan (Details) - USD ($) | 12 Months Ended
--- | ---
Aug. 31, 2019 | Aug. 31, 2018 | Aug. 31, 2017
2014 Equity Plan [Member] |  |  |
Stock Option Activity [Abstract] |  |  |
Reserved shares of common stock for issuance (in shares) | 1,600,000 |  |
Awards to purchase shares of common stock (in shares) | 402,000 |  |
Variable Assumptions Used in Fair Value Calculations [Abstract] |  |  |
Expected term | 5 years 9 months 18 days | 5 years 9 months 18 days |
Risk-free interest rate | 2.93% | 2.41% |
Expected volatility | 41.83% | 57.88% |
Expected dividend yield | 0.00% | 0.00% |
Weighted average grant-date fair value (in dollars per share) | $ 4.60 | $ 4.41 |
2014 Equity Plan [Member] | President [Member] |  |  |
Stock Option Activity [Abstract] |  |  |
Expiration period | 10 years | 10 years |
Number of Options [Roll Forward] |  |  |
Granted (in shares) | 50,000 | 50,000 |
2014 Equity Plan [Member] | Non-employee Directors [Member] |  |  |
Stock Option Activity [Abstract] |  |  |
Expiration period | 10 years | 10 years |
Number of Options [Roll Forward] |  |  |
Granted (in shares) | 32,500 | 32,500 |
2004 Incentive Plan and 2014 Equity Plan [Member] |  |  |
Stock Option Activity [Abstract] |  |  |
Options expired (in shares) | 0 | (2,500) |
Variable Assumptions Used in Fair Value Calculations [Abstract] |  |  |
Weighted average grant-date fair value (in dollars per share) | $ 4.60 |  |
Number of Options [Roll Forward] |  |  |
Outstanding, beginning of period (in shares) | 535,500 | 465,500 |
Granted (in shares) | 82,500 | 82,500 |
Exercised (in shares) | (62,500) | (10,000) |
Forfeited or expired (in shares) | 0 | (2,500) |
Outstanding, end of period (in shares) | 555,500 | 535,500 | 465,500
Options exercisable (in shares) | 403,000 |  |
Weighted Average Exercise Price [Roll Forward] |  |  |
Outstanding, beginning of period (in dollars per share) | $ 5.31 | $ 4.88 |
Granted (in dollars per share) | 10.48 | 8.05 |
Exercised (in dollars per share) | 3.09 | 7.50 |
Forfeited or expired (in dollars per share) | 0 | 7.50 |
Outstanding, end of period (in dollars per share) | 6.33 | $ 5.31 | $ 4.88
Options exercisable (in dollars per share) | $ 5.44 |  |
Stock Options, Additional Disclosure [Abstract] |  |  |
Weighted average remaining contractual term | 6 years 3 months 7 days | 6 years 14 days | 6 years 3 months 18 days
Weighted average remaining contractual term options exercisable | 5 years 5 months 19 days |  |
Approximate aggregate intrinsic value | $ 2,527,590 | $ 3,180,990 | $ 1,007,740
Approximate aggregate intrinsic value options exercisable | $ 2,180,299 |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Minimum [Member] |  |  |
Variable Assumptions Used in Fair Value Calculations [Abstract] |  |  |
Expected term | 5 years |  |
2004 Incentive Plan and 2014 Equity Plan [Member] | Maximum [Member] |  |  |
Variable Assumptions Used in Fair Value Calculations [Abstract] |  |  |
Expected term | 10 years |  |

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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 (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=116856206&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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