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STOCKHOLDERS' EQUITY (Conversion of Preferred Stock) (Details) $ / shares in Units, $ in Millions |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jan. 06, 2016 USD ($) $ / shares shares | Dec. 31, 2014 | Mar. 31, 2017 $ / shares shares | Dec. 31, 2016 $ / shares shares | Dec. 29, 2010 $ / shares
Conversion of Stock [Line Items] |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares |  |  | $ 0.01 | $ 0.01 |
Preferred stock, shares outstanding (in shares) |  |  | 214,705 | 214,705 |
Series A Preferred Stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Preferred stock, par value (in dollars per share) | $ / shares | $ 0.01 |  |  |  |
Common stock warrant, exercise price (in dollars per share) | $ / shares | $ 1.00 |  |  |  | $ 2.32
Conversion ratio | 0.3333 |  |  |  |
Common stock dividend (shares) | 3,681,590 |  |  |  |
Preferred stock, shares outstanding (in shares) | 0 |  |  |  |
Series B preferred stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Conversion ratio | 1 |  |  |  |
Preferred stock, shares outstanding (in shares) | 0 |  |  |  |
Preferred Stock | Series A Preferred Stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Common stock warrant, exercise price (in dollars per share) | $ / shares |  |  |  |  | $ 2.32
Conversion ratio |  | 4 |  |  |
Number of shares converted, shares | 2,586,205 |  |  |  |
Dividends payable | $ | $ 3.7 |  |  |  |
Preferred Stock | Series B preferred stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Conversion ratio | 1 |  |  |  |
Number of shares converted, shares | 1,443,297 |  |  |  |
Dividends payable | $ | $ 0.8 |  |  |  |
Common Stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Number of shares converted, shares | 2,305,354 |  |  |  |
Common Stock | Series A Preferred Stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Number of shares converted, shares | 862,057 |  |  |  |
Stock dividends (shares) | 793,235 |  |  |  |
Shares, issued (shares) | 6,780,179 |  |  |  |
Common Stock | Series B preferred stock |  |  |  |  |
Conversion of Stock [Line Items] |  |  |  |  |
Number of shares converted, shares | 1,443,297 |  |  |  |
Shares, issued (shares) | 4,474,825 |  |  |  |

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