SHAREHOLDERS' EQUITY - (Summary of Stock Option Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, end of period (in dollars per share)	$ 3.80
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning of period (in shares)	39,017	50,351	79,484
Granted (in shares)	0	0	0
Exercised (in shares)	(167)	(10,834)	(29,133)
Cancelled (in shares)	0	(500)	0
Outstanding, end of period (in shares)	38,850	39,017	50,351
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, beginning of period (in dollars per share)	$ 3.80	$ 3.72	$ 3.70
Weighted Average Option Exercise Price, Granted (in dollars per share)	0	0	0
Weighted Average Option Exercise Price, Exercised (in dollars per share)	2.45	3.47	3.68
Weighted Average Option Exercise Price, Cancelled (in dollars per share)	0	2.45	0
Outstanding, end of period (in dollars per share)	$ 3.80	$ 3.80	$ 3.72