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STOCKHOLDERS' EQUITY - RESTRICTED STOCK ACTIVITY (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Number of Shares
Granted (in shares)	139,652
Restricted stock awards
Number of Shares
Granted (in shares)	73,980
Vested (in shares)	(73,980)
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share)	$ 1.91	$ 2.20	$ 2.44
Vested (in dollars per share)	$ 1.91
Other disclosures
Total fair value of restricted stock that vested	$ 141,000	$ 159,000	$ 54,000

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Other disclosures

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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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The weighted average fair value at grant date for nonvested equity-based awards issued 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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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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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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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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