SHAREHOLDERS' EQUITY (Summary of Stock Option Activity) (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stock Options, Number of Shares [Roll Forward]
Outstanding, beginning of period (in shares)	174,633	219,285	526,521
Exercised (in shares)	(94,249)	(44,652)	(302,735)
Cancelled (in shares)	(900)		(4,501)
Outstanding, end of period (in shares)	79,484	174,633	219,285
Stock Options, Weighted Average Option Exercise Price [Roll Forward]
Outstanding, beginning of period (in dollars per share)	$ 3.79	$ 3.79	$ 4.56
Exercised (in dollars per share)	3.85	3.81	5.13
Cancelled (in dollars per share)	4.40		3.49
Outstanding, end of period (in dollars per share)	$ 3.70	$ 3.79	$ 3.79