SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
	Dec. 31, 2015
Equipment and facilities [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life	3 years
Equipment and facilities [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life	7 years
Internal-use software [Member]
Accounting Policies [Line Items]
Estimated useful life	7 years
Vehicles [Member] | Minimum [Member]
Accounting Policies [Line Items]
Estimated useful life	3 years
Vehicles [Member] | Maximum [Member]
Accounting Policies [Line Items]
Estimated useful life	7 years