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STOCKHOLDERS' EQUITY (DEFICIT) - AT THE MARKET OFFERING (Details) - USD ($) $ / shares in Units, $ in Thousands | Mar. 31, 2021 | Mar. 16, 2021 | Sep. 30, 2020
--- | --- | --- | ---
Sale of Stock [Line Items] |  |  |
Common stock, par value (in dollars per share) | $ 0.50 |  | $ 0.50
Deferred offering costs | $ 483 |  | $ 0
At The Market Offering |  |  |
Sale of Stock [Line Items] |  |  |
Common stock, par value (in dollars per share) |  | $ 0.50 |
Sale of stock, maximum aggregate sales price | 25,000 |  |
Entity public float, maximum amount | $ 75,000 |  |

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