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SUMMARY OF BLACK-SCHOLES OPTION PRICING TO ESTIMATE FAIR VALUE (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021
Equity [Abstract]
Number of Options (in shares), Outstanding at beginning of year	722,501
Weighted Average Exercise Price Per Share, Outstanding at beginning of year	$ 0.62
Weighted average remaining contractual life at begining	4 years 4 months 24 days
Aggregate intrinsic value at begining of year	$ 29,000
Number of Options (in shares), Granted at market price	165,000
Weighted Average Exercise Price Per Share, Granted	$ 0.54
Number of Options (in shares), Exercised
Weighted Average Exercise Price Per Share, Exercised
Number of Options (in shares), Forfeited or expired	(40,255)
Weighted Average Exercise Price Per Share, Forfeited or expired	$ 3.13
Number of Options (in shares), Outstanding at end of year	847,246
Weighted Average Exercise Price Per Share, Outstanding at end of year	$ 0.48
Weighted average remaining contractual life at end	4 years 8 months 12 days
Aggregate intrinsic value at end of year	$ 177,000
Number of Options (in shares), Exercisable at end of year	546,074
Weighted Average Exercise Price Per Share, Exercisable at end of year	$ 0.50
[custom:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableOutstandingWeightedAverageRemainingContractualTerm]	3 years 10 months 24 days
Aggregate intrinsic value at exercisable	$ 134,000

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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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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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 of options that were either forfeited or expired.

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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 option holders acquired shares when converting their stock options into shares.

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

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