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STOCK COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restricted Stock
Shares [Roll Forward]
Nonvested, Beginning Balance (in shares)	33,575		31,368		33,575
Granted (in shares)			0		255
Vested (in shares)			(1,552)		(3,902)
Forfeited or cancelled (in shares)			0		(112)
Nonvested, Ending Balance (in shares)			29,816		29,816
Weighted-Average Grant Date Fair Value [Roll Forward]
Nonvested, Beginning Balance (in dollars per share)	$ 43.24		$ 43.33		$ 43.24
Granted (in dollars per share)			0		39.35
Vested (in dollars per share)			43.16		42.18
Forfeitures or cancelled (in dollars per share)			0		44.72
Nonvested, Ending Balance (in dollars per share)			$ 43.34		$ 43.34
Total unrecognized compensation cost related to nonvested shares granted under the Plan			$ 1,000		$ 1,000
Weighted-average period for recognition (in years)					3 years 3 months 3 days
Total fair value of shares vested					$ 138	$ 32
President and Chief Executive Officer
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Service period for comparable group used to determine share based payment awards (in months)					12 months
Directors and President and Chief Executive Officer
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Number of treasury shares reissued to fund stock compensation (in shares)	7,923	8,465
Expenses related to stock based compensation recognized			$ 77	$ 84	$ 166	$ 177

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