Share-Based Compensation Arrangement By Share-based Payment Award, Options, Grants In Period, Fair Value

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- Definition

Share-based Compensation Arrangement By Share-based Payment Award, Options, Intrinsic Value, Closing Stock Price

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Options Outstanding With Intrinsic Value

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- Definition

Stock Issued During Period, Shares, Stock Swaps

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Stock Issued During Period, Shares, Stock Swaps Equity Instruments Received

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- Definition

Stock Issued During Period, Value, Stock Swaps, Net

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- Definition

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.

+ 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 (i)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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- Definition

Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

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.

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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

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- Definition

Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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- Definition

The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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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)(i)-(ii)
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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- Definition

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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- Definition

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 OPTIONS - NARRATIVE (Details) - USD ($)	12 Months Ended
STOCK OPTIONS - NARRATIVE (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Aug. 31, 2017	Jul. 31, 2015	Jul. 31, 2012	Oct. 30, 2007	Dec. 31, 2001
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option expiration period (in years)	10 years
Option vesting period (in years)	7 years
Aggregate intrinsic value of all stock options outstanding and expected to vest	$ 1,306,791	$ 4,150,334
Aggregate intrinsic value of currently exercisable stock options	$ 768,706	$ 1,574,318
Closing stock price for computation of intrinsic value (in dollars per share)	$ 2.60	$ 3.59
Number of in-the-money options outstanding and exercisable	2,318,887	1,211,014
Intrinsic value of options exercised	$ 223,340	$ 119,026	$ 51,575
Proceeds from stock options exercised	0	12,300	209,250
Intrinsic value of options granted	3,144,960	1,516,125	932,771
Fair value of option shares vested	$ 805,748	$ 612,464	$ 412,638
Shares issued in stock swaps	47,372	9,614	33,520
Value of stock swaps, net		$ 12,300
Unrecognized stock-based compensation cost	$ 3,000,000
Unrecognized stock-based compensation cost, recognition period (in years)	4 years
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares received in stock swaps	129,378	26,636	80,980
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares received in stock swaps	176,750	36,250	114,500
2001 Executive and Employee Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under common stock option plans								1,200,000
2003 Executive and Employee Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under common stock option plans							1,700,000
2012 Share Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under common stock option plans						750,000
Remaining shares for issuance (in shares)	37,000
2015 Executive and Employee Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under common stock option plans					2,000,000
Remaining shares for issuance (in shares)	343,578
2017 Executive and Employee Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized under common stock option plans				3,000,000
Remaining shares for issuance (in shares)	1,900,000