Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Gross number of share options (or share units) granted during the period.

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Price of a single share of a number of saleable stocks of a company.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Stock-Based Compensation Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Mar. 31, 2018
Closing stock price of common stock	$ 34.59		$ 34.59
Stock options granted	0		0
Employee Stock Option [Member]
Option term			10 years
Vesting term			5 years
Unrecognized compensation cost	$ 0		$ 0
Recognized tax benefit on share based compensation		$ 0		$ 0
Total compensation cost				6
Employee Stock Option [Member] \| Maximum [Member]
Unrecognized compensation cost		1		1
Restricted stock [Member]
Unrecognized compensation cost	293		293
Total compensation cost	$ 1,300	$ 837	$ 2,400	$ 1,700
Shares available for grant	2,836		2,836
Weighted average period, unrecognized compensation expected to be recognized (in years)			5 months 15 days
Restricted stock [Member] \| Tranche One [Member]
Vesting term			3 years
Restricted stock [Member] \| Tranche Two [Member]
Vesting term			5 years
Performance Shares [Member]
Shares available for grant					92,767
Restricted Stock Units [Member]
Unrecognized compensation cost	$ 9,300		$ 9,300
Weighted average period, unrecognized compensation expected to be recognized (in years)			1 year 4 months 2 days