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Weighted average grant-date fair value of other than options vested.

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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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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 number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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STOCK-BASED COMPENSATION - 2015 EIP Restricted Stock Units (Details) - 2015 EIP Plan - Restricted Stock Units - USD ($) $ / shares in Units, $ in Thousands						12 Months Ended
	May 15, 2019	Mar. 04, 2019	May 15, 2018	Feb. 27, 2018	May 17, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Awards
Number of common shares outstanding in respect of RSUs						326,247	216,304
Vesting period of awards						3 years
Number of Shares
Balance at the beginning of the period (in shares)						149,170	220,129	66,666
Granted (in shares)	29,580	106,079	14,268	37,436	25,197	140,914	51,704	317,595
Vested (in shares)	(14,268)		(25,197)			(127,988)	(122,663)	(164,132)
Balance at the end of the period (in shares)						162,096	149,170	220,129
Weighted Average Fair Value
Balance at the beginning of the period (in dollars per share)						$ 12.42	$ 11.01	$ 5.10
Granted (in dollars per share)						8.50	14.84	11.05
Vested (in dollars per share)						12.10	10.92	8.68
Balance at the end of the period (in dollars per share)						$ 9.26	$ 12.42	$ 11.01
Weighted-average remaining contractual life						1 year 8 months 1 day
Additional disclosures
Total fair value of shares vested						$ 1,235	$ 1,694	$ 1,858
Unrecognized compensation cost related to nonvested stock awards
Unrecognized compensation cost						$ 613
Weighted-average period for recognition of unrecognized compensation cost						1 year 8 months 1 day
General and Administrative Expense
Additional disclosures
Recognized nonvested stock amortization expense						$ 1,207	$ 1,489	$ 2,241
Vested RSUs
Number of Shares
Number of shares vested						422,223
Weighted Average Grant Date Price, Vested						$ 11.47
Eugene Davis
Number of Shares
Granted (in shares)					18,234