STOCKHOLDERS' EQUITY - Directors Stock Award Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Directors' Stock Award Plan
Share based Compensation Plan
Common shares received on election as director	1,600
Additional shares issued at each annual general meeting	1,600
Total SCC shares reserved for the plan	600,000	600,000
Period of extension of plan	5 years
Stock based compensation expense	$ 0.3	$ 0.3
Activity in directors' stock award plan
Total shares granted at the beginning of the period (in shares)	(416,800)	(405,200)
Granted (in shares)	(12,000)	(11,600)
Total shares granted at the end of the period (in shares)	(428,800)	(416,800)
Remaining shares reserved	171,200	183,200
New 2021 grant
Share based Compensation Plan
Numbers of shares shall be granted quarterly and conditioned upon the attendance of each director to each Board meeting	400