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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings (Loss) Per Share (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Earnings Per Share [Abstract] |  |
Net loss - basic | $ (4,371) | $ (5,028)
Adjustment for assumed conversion of warrants | (1,671) | 0
Net loss - diluted | $ (6,042) | $ (5,028)
Weighted-average common share equivalents - basic (in shares) | 26,012,381 | 22,882,960
Potential dilution from assumed conversion of warrants (in shares) | 449,000 | 0
Weighted-average common and common share equivalents - diluted (in shares) | 26,460,902 | 22,882,960
Anti-dilutive share-based awards and warrants excluded from the calculation of diluted loss per share (in shares) | 2,576,000 | 3,498,000

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of call options and warrants using the treasury stock method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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