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STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Nov. 20, 2019
Equity, Class of Treasury Stock [Line Items]
Stock repurchased during the period (in shares)	84,950	89,613
Stock repurchased during the period, value	$ 2.0	$ 3.0
Common Stock
Equity, Class of Treasury Stock [Line Items]
Shares authorized to be repurchased (in shares)			7,500,000
Stock repurchased under repurchase program (in shares)	2,684,408	3,498,394
Remaining number of shares authorized to be repurchased (in shares)	1,550,173

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Number of shares that have been repurchased and retired during the period.

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