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STOCK OPTIONS - Narrative (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 03, 2020 USD ($) $ / shares | Sep. 28, 2019 USD ($) $ / shares shares | Oct. 03, 2020 USD ($) plan $ / shares shares | Sep. 28, 2019 USD ($) $ / shares shares
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Number of stock option plans | plan |  |  | 2 |
Grants in period, gross (in Shares) | shares |  |  | 266,500 | 34,000
Exercise price (in Dollars per share) |  |  | $ 21.90 | $ 19.79
Exercise of stock options (in Shares) | shares |  |  | 3,500 | 40,500
Exercised (in Dollars per share) |  |  | $ 14.40 | $ 12.42
Risk free interest rate, minimum |  |  |  | 2.52%
Risk free interest rate, maximum |  |  | 1.54% | 2.61%
Volatility rate |  |  | 30.30% | 30.60%
Dividend yield |  |  | 5.20% | 5.10%
Expected term |  |  | 10 years | 10 years
Stock-based compensation | $ |  |  | $ 176,000 | $ 112,000
Unrecognized compensation cost | $ | $ 772,000 |  | $ 772,000 |
Unrecognized compensation recognition period |  |  | 3 years 3 months 18 days |
Maximum amount of compensation paid under cash bonus plan | $ |  |  | $ 1,000,000 |
Employee Stock Option |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Grants in period, gross (in Shares) | shares |  |  | 266,500 |
Exercise price (in Dollars per share) |  |  | $ 21.90 |
Weighted average grant date fair value (in Dollars per share) |  |  | $ 3.35 |
Employee Stock Option | Exercise Price, One |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Grants in period, gross (in Shares) | shares |  |  |  | 23,000
Exercise price (in Dollars per share) |  |  |  | $ 19.61
Weighted average grant date fair value (in Dollars per share) |  |  |  | $ 3.48
Grant date fair value | $ |  |  |  | $ 80,000
Employee Stock Option | Exercise Price, Two |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Grants in period, gross (in Shares) | shares |  | 11,000 |  |
Exercise price (in Dollars per share) |  | $ 20.18 |  |
Weighted average grant date fair value (in Dollars per share) |  | $ 3.55 |  |
Grant date fair value | $ |  | $ 39,000 |  |
Tranche One | Employee Stock Option |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  |  | 50.00% |
Tranche One | Employee Stock Option | Exercise Price, One |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  |  |  | 50.00%
Tranche One | Employee Stock Option | Exercise Price, Two |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  | 25.00% |  |
Tranche Two | Employee Stock Option |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  |  | 50.00% |
Tranche Two | Employee Stock Option | Exercise Price, One |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  |  |  | 50.00%
Tranche Two | Employee Stock Option | Exercise Price, Two |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  | 25.00% |  |
Tranche Three | Employee Stock Option | Exercise Price, Two |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  | 25.00% |  |
Tranche Four | Employee Stock Option | Exercise Price, Two |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Exercisable percentage, grant date |  | 25.00% |  |
2010 Plan |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Expiration period |  |  | 10 years |
Exercised (in Dollars per share) | $ 12.04 |  |  |
Purchase and retirement of treasury shares (in Shares) | shares |  |  |  | 11,774
2010 Plan | Employee Stock Option |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Grants in period, gross (in Shares) | shares |  |  |  | 19,500
2016 Plan |  |  |  |
STOCK OPTIONS (Details) [Line Items] |  |  |  |
Expiration period |  |  | 10 years |

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