STOCK-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2017

STOCK-BASED COMPENSATION

Schedule of weighted-average assumptions used for estimation of the fair value of the options granted under the Plan at the date of grant, using the Black-Scholes Option Valuation Model

	Three months ended  September 30,				Nine months ended September 30,
	2017		2016		2017		2016
Risk-free interest rate	1.46	%	1.15	%	1.49	%	1.15	%
Dividend yield	0.36	%	0.25	%	0.34	%	0.25	%
Volatility factor of the expected market price of common stock	72	%	74	%	73	%	74	%
Weighted-average expected life of option	3.5 years		5 years		3.5 years		5 years
Weighted-average grant date fair value	1.40		2.36		1.52		2.36