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STOCK OPTION PLANS (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
2015 Equity Incentive Plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Shares authorized but unissued common stock (in shares) | 8,000,000 |
Dividend yield | 0.00% | 0.00%
Volatility | 109.00% | 102.00%
Risk-free interest rate | 1.10% | 0.86%
Expected lives | 5 years | 5 years
Weighted average fair value of options granted (in dollars per share) | $ 2.59 | $ 6.90
Options [Roll Forward] |  |
Outstanding options, beginning balance (in shares) | 1,994,000 | 0
Granted (in shares) | 2,622,500 | 1,994,000
Exercised (in shares) | (151,000) |
Expired/forfeited (in shares) | (22,500) |
Outstanding options, ending balance (in shares) | 4,443,000 | 1,994,000
Exercisable, ending balance (in shares) | 1,327,687 |
Weighted-average exercise price [Roll Forward] |  |
Outstanding options, beginning of period (in dollars per share) | $ 6.90 | $ 0
Granted (in dollars per share) | 3.29 | 6.90
Exercised (in dollars per share) | 2.32 |
Expired/forfeited (in dollars per share) | 3.23 |
Outstanding options, ending balance (in dollars per share) | 4.94 | $ 6.90
Exercisable, end on period (in dollars per share) | $ 6.60 |
Intrinsic value of options outstanding | $ 3,806 | $ 0
Intrinsic value of options exercisable | 417 | 0
Total intrinsic value of options exercised | $ 450 | $ 0
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Number of options outstanding (in shares) | 4,443,000 |
Number of options exercisable (in shares) | 1,327,687 |
2015 Equity Incentive Plan [Member] | $2.31 - 4.45 [Member] |  |
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Range of exercise prices, lower range limit (in dollars per share) | $ 2.31 |
Range of exercise prices, upper range limit (in dollars per share) | $ 4.45 |
Number of options outstanding (in shares) | 2,748,000 |
Options outstanding, weighted average, remaining life in years | 9 years 10 months 24 days |
Options outstanding, weighted average, exercise price (in dollars per share) | $ 3.47 |
Number of options exercisable (in shares) | 227,271 |
Options exercisable, weighted-average, remaining life in years | 9 years 6 months |
Options exercisable, weighted-average, exercise price (in dollars per share) | $ 3.01 |
2015 Equity Incentive Plan [Member] | 7.34 [Member] |  |
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Range of exercise prices, upper range limit (in dollars per share) | $ 7.34 |
Number of options outstanding (in shares) | 1,695,000 |
Options outstanding, weighted average, remaining life in years | 9 years |
Options outstanding, weighted average, exercise price (in dollars per share) | $ 7.34 |
Number of options exercisable (in shares) | 1,100,416 |
Options exercisable, weighted-average, remaining life in years | 9 years |
Options exercisable, weighted-average, exercise price (in dollars per share) | $ 7.34 |
2005 Equity Incentive Plan [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |
Dividend yield |  | 0.00%
Volatility |  | 102.00%
Risk-free interest rate |  | 1.41%
Expected lives |  | 4 years 7 months 6 days
Weighted average fair value of options granted (in dollars per share) |  | $ 4.52
Options [Roll Forward] |  |
Outstanding options, beginning balance (in shares) | 330,084 | 210,084
Granted (in shares) |  | 120,000
Expired/forfeited (in shares) | (1,524) |
Outstanding options, ending balance (in shares) | 328,560 | 330,084
Exercisable, ending balance (in shares) | 328,560 |
Weighted-average exercise price [Roll Forward] |  |
Outstanding options, beginning of period (in dollars per share) | $ 13.49 | $ 20.19
Granted (in dollars per share) |  | 3.25
Expired/forfeited (in dollars per share) | 36.93 |
Outstanding options, ending balance (in dollars per share) | 14.57 | $ 13.49
Exercisable, end on period (in dollars per share) | $ 14.57 |
Intrinsic value of options outstanding |  | $ 192
Intrinsic value of options exercisable |  | $ 192
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Number of options outstanding (in shares) | 328,560 |
Number of options exercisable (in shares) | 328,560 |
2005 Equity Incentive Plan [Member] | $3.25 [Member] |  |
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Range of exercise prices, upper range limit (in dollars per share) | $ 3.25 |
Number of options outstanding (in shares) | 120,000 |
Options outstanding, weighted average, remaining life in years | 4 years |
Options outstanding, weighted average, exercise price (in dollars per share) | $ 3.25 |
Number of options exercisable (in shares) | 120,000 |
Options exercisable, weighted-average, remaining life in years | 4 years |
Options exercisable, weighted-average, exercise price (in dollars per share) | $ 3.25 |
2005 Equity Incentive Plan [Member] | $11.50 - 18.50 [Member] |  |
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Range of exercise prices, lower range limit (in dollars per share) | 11.50 |
Range of exercise prices, upper range limit (in dollars per share) | $ 18.50 |
Number of options outstanding (in shares) | 200,000 |
Options outstanding, weighted average, remaining life in years | 7 years 7 months 6 days |
Options outstanding, weighted average, exercise price (in dollars per share) | $ 18.33 |
Number of options exercisable (in shares) | 200,000 |
Options exercisable, weighted-average, remaining life in years | 7 years 7 months 6 days |
Options exercisable, weighted-average, exercise price (in dollars per share) | $ 18.33 |
2005 Equity Incentive Plan [Member] | $30.50 - 150.00 [Member] |  |
Information regarding options outstanding by range of exercise prices [Abstract] |  |
Range of exercise prices, lower range limit (in dollars per share) | 30.50 |
Range of exercise prices, upper range limit (in dollars per share) | $ 150.00 |
Number of options outstanding (in shares) | 8,560 |
Options outstanding, weighted average, remaining life in years | 4 years |
Options outstanding, weighted average, exercise price (in dollars per share) | $ 85.41 |
Number of options exercisable (in shares) | 8,560 |
Options exercisable, weighted-average, remaining life in years | 4 years |
Options exercisable, weighted-average, exercise price (in dollars per share) | $ 85.41 |

X
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + 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 (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + 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)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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 (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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 (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + 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 (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. + References No definition available. + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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 (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + 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 (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Expected term of share-based compensation awards, 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 (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + 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 (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of exercisable stock options, 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 (e)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + 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 (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of share options (or share units) exercised during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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