SIGNIFICANT ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Weighted Average Number of Shares

	Year ended December 31
	2017	2016	2015
Weighted average shares outstanding - basic	37,002,260	37,267,145	36,670,466
Effect of dilutive employee and director share-based awards	—	72,873	—
Weighted average shares outstanding - diluted	37,002,260	37,340,018	36,670,466
Anti-dilutive stock options outstanding	358,741	435,991	211,821
Participating securities excluded from calculation of loss per share	331,510	—	307,013