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RELATED PARTY TRANSACTIONS (Details) - Royalty Agreement and License - BHS - Affiliated Entity - ReStore - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Feb. 28, 2013 | Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Related Party Transaction [Line Items] |  |  |  |  |
Royalty expense |  | $ 72 | $ 61 | $ 248 | $ 238
Number of days for termination notice | 120 days |  |  |  |
Director |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Percentage of common stock outstanding (more than) |  | 5.00% |  | 5.00% |

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- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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