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 | |
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 | |