SHARE CAPITAL (Summary of Options Outstanding and Exercisable) (Details)
$ / shares in Units, $ in Thousands |
12 Months Ended |
|
Dec. 31, 2017
USD ($)
$ / shares
shares
|
|---|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Options outstanding | shares |
331,660
|
| Weighted average remaining contractual life |
2 years 1 month 13 days
|
| Weighted average exercise price |
$ 4.03
|
| Aggregate intrinsic value | $ |
$ 321,158
|
| Options exercisable | shares |
236,277
|
| Weighted average exercise price |
$ 3.67
|
| Weighted average remaining contractual life |
2 years 3 months 14 days
|
| Aggregate intrinsic value | $ |
$ 286,381
|
| Exercise Price Range One [Member] |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of exercise price, lower limit |
$ 0.00
|
| Range of exercise price, upper limit |
$ 0.85
|
| Options outstanding | shares |
77,512
|
| Weighted average remaining contractual life |
4 years 3 months 11 days
|
| Weighted average exercise price |
$ 0.69
|
| Aggregate intrinsic value | $ |
$ 249,217
|
| Options exercisable | shares |
77,512
|
| Weighted average exercise price |
$ 0.69
|
| Weighted average remaining contractual life |
4 years 3 months 11 days
|
| Aggregate intrinsic value | $ |
$ 249,217
|
| Exercise Price Range Two [Member] |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of exercise price, lower limit |
$ 3.00
|
| Range of exercise price, upper limit |
$ 5.00
|
| Options outstanding | shares |
198,148
|
| Weighted average remaining contractual life |
1 year 3 months 25 days
|
| Weighted average exercise price |
$ 4.00
|
| Aggregate intrinsic value | $ |
$ 71,941
|
| Options exercisable | shares |
124,265
|
| Weighted average exercise price |
$ 4.12
|
| Weighted average remaining contractual life |
1 year 1 month 24 days
|
| Aggregate intrinsic value | $ |
$ 37,164
|
| Exercise Price Range Three [Member] |
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
| Range of exercise price, lower limit |
$ 7.00
|
| Range of exercise price, upper limit |
$ 10.00
|
| Options outstanding | shares |
56,000
|
| Weighted average remaining contractual life |
1 year 11 months 23 days
|
| Weighted average exercise price |
$ 8.75
|
| Aggregate intrinsic value | $ |
$ 0
|
| Options exercisable | shares |
34,500
|
| Weighted average exercise price |
$ 8.75
|
| Weighted average remaining contractual life |
1 year 10 months 24 days
|
| Aggregate intrinsic value | $ |
$ 0
|