CAPITAL STOCK (Details) - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Common Stock [Roll Forward]
Balance, beginning of period (in shares)	17,197,380
Balance, end of period (in shares)	17,315,573	17,197,380
Treasury Shares [Roll Forward]
Issuance of treasury shares for acquisition (in shares)			148,769
Purchase of treasury shares (in shares)			191,420
Issuance of treasury shares upon vesting of restricted shares net of withholding (in shares)		264,297	57,401
Common Stock [Member]
Common Stock [Roll Forward]
Balance, beginning of period (in shares)	17,197,000	14,390,000	14,375,000
Issuance of shares for compensation net of withholding (in shares)	119,000	84,000	15,000
Issuance of common stock related to equity distribution agreements (in shares)	0	2,723,000	0
Balance, end of period (in shares)	17,316,000	17,197,000	14,390,000
Treasury Stock [Member]
Treasury Shares [Roll Forward]
Balance, beginning of period (in shares)	0	264,000	280,000
Issuance of treasury shares for acquisition (in shares)	0	0	(149,000)
Purchase of treasury shares (in shares)	0	0	191,000
Issuance of treasury shares upon vesting of restricted shares net of withholding (in shares)	0	(264,000)	(58,000)
Balance, end of period (in shares)	0	0	264,000
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)	1,122	1,122
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, outstanding (in shares)	15,000	15,000