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STOCKHOLDERS' EQUITY (Preferred Stock Series A) (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 29, 2010 USD ($) $ / shares shares | Nov. 30, 2011 USD ($) | Mar. 31, 2017 Director shares | Mar. 31, 2016 USD ($) | Dec. 31, 2016 shares | Jan. 06, 2016 $ / shares
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, shares authorized (in shares) | shares |  |  | 15,000,000 |  | 15,000,000 |
Proceeds from issuance of common stock and convertible notes | $ | $ 6,000 |  |  |  |  |
Payments of stock issuance costs | $ |  |  |  | $ 219 |  |
Minimum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Number of directors | Director |  |  | 2 |  |  |
Series A Preferred Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Common stock warrant, exercise price (in dollars per share) | $ / shares | $ 2.32 |  |  |  |  | $ 1.00
Convertible notes, number of securities called by note | shares | 1,293,102 |  |  |  |  |
Payments of stock issuance costs | $ | $ 200 |  |  |  |  |
Preferred stock | Series A Preferred Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, shares authorized (in shares) | shares |  |  | 3,879,307 |  |  |
Private placement, net (in shares) | shares | 2,586,205 |  |  |  |  |
Common stock warrant, exercise price (in dollars per share) | $ / shares | $ 2.32 |  |  |  |  |
Preferred stock, dividend rate (percentage) |  |  | 10.00% |  |  |
Preferred Stock, compound dividend rate maximum (percentage) |  |  | 50.00% |  |  |
Common Stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Redemption value adjustment | $ |  | $ 300 |  |  |  |

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