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6. STOCK-BASED COMPENSATION (Details-Outstanding options and warrants) - Options [Member] $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) $ / shares shares
STOCK BASED COMPENSATION
Begining Balance | shares	420,149
Granted | shares	133,133
Ending Balance | shares	553,282
Exercisable at the end | shares	100,211
Weighted Average Exercise price Per Common Share
Begining Balance | $ / shares	$ 6.82
Granted | $ / shares	10.05
Ending Balance | $ / shares	7.05
Exercisable at the end | $ / shares	$ 4.39
Weighted Average Remaining Contractual Life
Ending Balance	7 years 8 months 16 days
Exercisable at the end	4 years 3 months 11 days
Aggregate Intrinsic Value
Aggregate value outstanding | $	$ 4,398,199
Aggregate value exercisable | $	$ 1,063,418

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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

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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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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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

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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.

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