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6. STOCK-BASED COMPENSATION (Details-Outstanding options and warrants) - Options [Member]	3 Months Ended
	Mar. 31, 2017 USD ($) $ / shares shares
STOCK BASED COMPENSATION
Begining Balance | shares	375,626
Granted | shares	184,523
Ending Balance | shares	560,149
Exercisable at the end | shares	205,000
Weighted Average Exercise price Per Common Share
Begining Balance | $ / shares	$ 6.82
Granted | $ / shares	6.30
Ending Balance | $ / shares	6.65
Exercisable at the end | $ / shares	$ 7.51
Weighted Average Remaining Contractual Life
Ending Balance	6 years 15 days
Exercisable at the end	8 months 5 days
Aggregate Intrinsic Value
Aggregate value outstanding | $	$ 163,700
Aggregate value exercisable | $	$ 154,400

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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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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-Name Accounting Standards Codification
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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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