COMMON STOCK, STOCK-BASED COMPENSATION AND WARRANTS - Stock option activity (Details) - $ / shares	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Shares
Outstanding, beginning of the year	10,988,604
Granted	799,847
Forfeited	(100,666)
Expired	(929,115)
Outstanding, end of the year	10,758,670	10,988,604
Weighted Average Exercise Price per Share
Outstanding, beginning of the year	$ 3.58
Granted	0.65
Forfeited	1.56
Expired	3.81
Outstanding, end of the year	$ 3.36	$ 3.58
Weighted Average Remaining Contractual Life (Years)
Outstanding, beginning of the year	6 years 29 days	5 years 11 months 23 days
Outstanding, end of the year	6 years 29 days

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- Definition

Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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

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- Definition

Number of options outstanding, including both vested and non-vested options.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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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 price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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- Definition

Weighted-average contractual term remaining for vested portion of option outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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

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