ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Stock-based Compensation (Details)	12 Months Ended
Dec. 31, 2017 plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of active stock based compensation plan	1
Percentages of stock option ownership considered for higher exercise price of option	10.00%
Option exercise price as percentages of closing exercise price	110.00%
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.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&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.

+ Details

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Details

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