STOCKHOLDERS' EQUITY (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stockholders Equity Description [Line Items]
Exercise of stock options													$ 3,182	$ 314	$ 0
Dividend paid per share to all stockholders of record (in Dollars per Share)	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175	$ 0.175
Preferred stock, shares authorized (in Shares)	5,000,000				5,000,000								5,000,000	5,000,000
Dividend Declared [Member]
Stockholders Equity Description [Line Items]
Dividends payable (in Description)													Quarterly
Dividends payable, amount per share (in Dollars per Share)	$ 0.175												$ 0.175
Dividends payable, date to be paid (Date)													Mar. 17, 2016
Dividends payable, date of record (Date)													Mar. 07, 2016
Common Stock [Member]
Stockholders Equity Description [Line Items]
Exercise of stock options (in Shares)													335,000	32,000	1,000
Common stock surrendered by employees in satisfaction of minimum tax withholding associated with equity award vesting (in Shares)													140,000	91,000	85,000
Common stock surrendered by employees in satisfaction of minimum tax withholding associated with equity award vesting													$ 2,610	$ 1,476	$ 950
Common stock issued for services (in Shares)													22,000	29,000	50,000