WARRANTS (Details - Warrant activity) - Warrant [Member] $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
Jun. 30, 2022 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Warrants outstanding, beginning balance \| shares	1
Weighted-average exercise price, warrants outstanding, beginning balance \| $ / shares	$ 33.75
Forfeited \| shares	(1)
Weighted average exercise prices per share, Forfeited \| $ / shares	$ 33.75
Warrants outstanding, ending balance \| shares	0
Number of shares, exercisable \| shares	0
Weighted average exercise price , exercisable \| $ / shares
Weighted-average exercise price, warrants outstanding, ending balance \| $ / shares
Intrinsic value outstanding, ending balance \| $	$ 0
Intrinsic value, exercisable \| $	$ 0

Exercise price per share or per unit of warrants or rights outstanding.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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.

+ References

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- Definition

Weighted average price of options that were either forfeited or expired.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Intrinsic value of outstanding award under share-based payment arrangement. Excludes share and unit options.

+ References

No definition available.

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

Number of non-vested options forfeited.

+ References

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WARRANTS (Details - Warrant activity) - Warrant [Member] $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Warrants outstanding, beginning balance \| shares	1
Weighted-average exercise price, warrants outstanding, beginning balance \| $ / shares	$ 33.75
Forfeited \| shares	(1)
Weighted average exercise prices per share, Forfeited \| $ / shares	$ 33.75
Warrants outstanding, ending balance \| shares	0
Number of shares, exercisable \| shares	0
Weighted average exercise price , exercisable \| $ / shares
Weighted-average exercise price, warrants outstanding, ending balance \| $ / shares
Intrinsic value outstanding, ending balance \| $	$ 0
Intrinsic value, exercisable \| $	$ 0