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STOCKHOLDERS' EQUITY - Stock Repurchase Program (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Sep. 30, 2022
Stock Repurchase Program
Remaining value of common shares authorized for repurchase	$ 7,500,000
Repurchases of common stock - net	$ 5,240,000
Stock Repurchase Program
Stock Repurchase Program
Number of shares repurchased	208,000	0	0
Repurchases of common stock - net	$ 5,214,000
Payment of commissions on sale of shares	$ 12,000
Stock Repurchase Program, September 2022
Stock Repurchase Program
Value of common shares authorized for repurchase				$ 7,500,000
Stock Repurchase Program, March 2016
Stock Repurchase Program
Value of common shares authorized for repurchase				$ 2,286,000

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