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STOCK OPTIONS - Outstanding (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Share-based compensation expense	$ 0	$ 0	$ 0
Assumed dividends	$ 0
Lower than market
Stock Options Outstanding
Shares Outstanding	199,450
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Shares Outstanding	199,450
Total intrinsic value of options exercised	$ 1,733,856
Director, officer, and employee | Stock Option
Stock Options Outstanding
Exercise price (in dollars per share)	$ 2.05	$ 2.12	$ 1.57	$ 1.51
Director, officer, and employee | Stock Option | Exercise Price Dollars 1.05
Stock Options Outstanding
Exercise price (in dollars per share)	$ 1.05
Shares Outstanding	82,500
Weighted Average Remaining Contractual Life	5 years 11 months 27 days
Shares Exercisable	82,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Shares Outstanding	82,500
Director, officer, and employee | Stock Option | Exercise Price Dollars 2.75
Stock Options Outstanding
Exercise price (in dollars per share)	$ 2.75
Shares Outstanding	116,950
Weighted Average Remaining Contractual Life	5 years 8 months 12 days
Shares Exercisable	116,950
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Shares Outstanding	116,950
Non Employees | Stock Option
Stock Options Outstanding
Exercise price (in dollars per share)			$ 0.81	$ 0.81

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The estimated amount of dividends to be paid to holders of the underlying shares (expected dividends) over the option's term. Dividends are taken into account because payment of dividends to shareholders reduces the fair value of the underlying shares, and option holders generally do not receive dividends.

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

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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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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