ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock-based Compensation (Details)	12 Months Ended
Dec. 31, 2020 plan	Apr. 17, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active stock based compensation plan \| plan	1
Number of shares authorized (in shares) \| shares		370,000
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option exercise price as percentages of closing exercise price	110.00%
Vesting period of stock options	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentages of stock option ownership considered for higher exercise price of option	10.00%
Vesting period of stock options	2 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period of stock option plan	10 years
Incentive Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period of stock option plan	5 years

Represents number of active stock based compensation plan during the period.

No definition available.

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- Definition

Represents option exercise price as percentages of closing exercise price of stock for specific shareholders who own 10% or more of the entity's outstanding stock.

+ References

No definition available.

+ Details

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- Definition

Represents percentages of stock option ownership considered for higher exercise price of option.

+ References

No definition available.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ 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
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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

Number of shares authorized for issuance under share-based payment arrangement.

+ 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
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ 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
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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