STOCK-BASED COMPENSATION (Details 1)	3 Months Ended
Mar. 31, 2019 $ / shares shares
Issuances Outside Of Plans [Member]
Exercise Price, lower limit	$ 16.00
Exercise Price, upper limit	$ 46.40
Options Outstanding \| shares	199,875
Weighted Average Remaining Contractual Life (Years)	7 years 1 month 24 days
Weighted Average Exercise Price, Outstanding	$ 26.09
Options, Exercisable \| shares	47,121
Weighted Average Exercise Price, Exercisable	$ 28.87
Total Options [Member]
Exercise Price, lower limit	12.00
Exercise Price, upper limit	$ 46.40
Options Outstanding \| shares	360,250
Weighted Average Remaining Contractual Life (Years)	7 years 2 months 12 days
Weighted Average Exercise Price, Outstanding	$ 20.94
Options, Exercisable \| shares	150,247
Weighted Average Exercise Price, Exercisable	$ 18.88
Exercise Price Range $12.00 - $14.00 [Member]
Exercise Price, lower limit	12.00
Exercise Price, upper limit	$ 14.00
Options Outstanding \| shares	149,000
Weighted Average Remaining Contractual Life (Years)	7 years 3 months 7 days
Weighted Average Exercise Price, Outstanding	$ 13.44
Options, Exercisable \| shares	96,751
Weighted Average Exercise Price, Exercisable	$ 13.31
Exercise Price Range $26.40 - $27.60 [Member]
Exercise Price, lower limit	26.40
Exercise Price, upper limit	$ 27.40
Options Outstanding \| shares	8,500
Weighted Average Remaining Contractual Life (Years)	8 years 3 months 11 days
Weighted Average Exercise Price, Outstanding	$ 27.46
Options, Exercisable \| shares	3,500
Weighted Average Exercise Price, Exercisable	$ 27.26
Exercise Price Range $30.20 - $33.80 [Member]
Exercise Price, lower limit	30.20
Exercise Price, upper limit	$ 33.80
Options Outstanding \| shares	2,875
Weighted Average Remaining Contractual Life (Years)	3 years 3 months 29 days
Weighted Average Exercise Price, Outstanding	$ 32.67
Options, Exercisable \| shares	2,875
Weighted Average Exercise Price, Exercisable	$ 32.67
Exercise Price Range $12.00 - $33.80 [Member]
Exercise Price, lower limit	12.00
Exercise Price, upper limit	$ 33.80
Options Outstanding \| shares	160,375
Weighted Average Remaining Contractual Life (Years)	7 years 3 months
Weighted Average Exercise Price, Outstanding	$ 14.53
Options, Exercisable \| shares	103,126
Weighted Average Exercise Price, Exercisable	$ 14.32

The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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 (g)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ 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
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

+ 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)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

+ 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)(iii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ 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
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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