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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Unrecognized cost of unvested options awarded to employees as compensation.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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STOCK-BASED COMPENSATION. (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 14, 2018	Jun. 16, 2016
Total compensation cost related to unvested awards	$ 3,648
Compensation cost weighted average period	1 year 7 months 17 days
2006 Stock Incentive Plan [Member]
Shares authorized		1,715,000
2016 Stock Incentive Plan [Member]
Shares authorized				3,650,000	1,150,000
Stock Options [Member]
Intrinsic values of outstanding options	$ 84,000	$ 84,000
Fair value of stock vested	$ 1,629	$ 3,210	$ 1,142