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STOCK-BASED COMPENSATION (Schedule of Share-based Compensation, Stock Options Activity) (Details) - Employee Stock Option [Member] - Equity Plan 2016 [Member] - $ / shares | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Number of shares, Outstanding at beginning of period (in shares) | 62,429 | 62,086
Number of shares, Granted (in shares) |  | 1,202
Number of shares, Exercised (in shares) | (35,180) | (859)
Number of shares, Outstanding at end of period (in shares) | 27,249 | 62,429
Number of shares, Exercisable at end of period (in shares) | 27,249 | 61,828
Weighted Average Grant Date Fair Value, Outstanding at beginning of period | $ 8.47 | $ 8.29
Weighted Average Grant Date Fair Value, Granted |  | 16.65
Weighted Average Grant Date Fair Value, Exercised | 7.54 | 6.64
Weighted Average Grant Date Fair Value, Outstanding at end of period | 9.68 | 8.47
Weighted Average Exercise Price, Exercisable at end of period | $ 9.68 | $ 8.40

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Net number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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