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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Changes in Options Outstanding) (Details) $ / shares in Units, $ in Thousands | 3 Months Ended
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Mar. 31, 2019 USD ($) $ / shares shares
Number of Options |
Balance | shares | 91,310
Exercised | shares | (300)
Expired | shares | (630)
Balance | shares | 90,380
Vested and expected to vest | shares | 90,380
Exercisable | shares | 90,380
Weighted Average Exercise Price |
Balance | $ / shares | $ 13.63
Exercised | $ / shares | 12.98
Expired | $ / shares | 22.57
Balance | $ / shares | 13.57
Vested and expected to vest | $ / shares | 13.57
Exercisable | $ / shares | $ 13.57
Weighted Average Remaining Contractual Term |
Balance | 2 years 5 months 19 days
Vested and expected to vest | 2 years 5 months 19 days
Exercisable | 2 years 5 months 19 days
Aggregate Intrinsic Value |
Balance | $ | $ 1,143
Vested and expected to vest | $ | 1,143
Exercisable | $ | $ 1,143

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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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