SHARE-BASED COMPENSATION (Narrative) (Details) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2018	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized		500,000
Shares Available for Grant		257,941
Proceeds from stock options		$ 135,000	$ 14,000
Stock Options [Member]
Issued (in shares)		76,500
Proceeds from stock options		$ 135,232	$ 14,236
Common Stock Awarded (shares)		9,376	16,806
Stock Options [Member] \| Management [Member]
Issued (in shares)	40,500
Vesting period		5 years
Award term		P10Y
Stock Options [Member] \| Board of Director members [Member]
Issued (in shares)	36,000
Award term		P5Y
Non-Vested Stock Options [Member]
Unrecognized Compensation Cost, nonvested, total (in dollars)		$ 388,340
Unrecognized Compensation Cost, weighted average expense recognition period (years)		4 years 1 month 6 days

Unrecognized cost of unvested share-based compensation awards.

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-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
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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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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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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.

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

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Description of pertinent provisions of equity-based compensation awards that have actual or potential impact upon the company's financial statements.

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Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.

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