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STOCKHOLDERS' EQUITY - Common Stock (Details) $ / shares in Units, $ in Thousands |  |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Nov. 07, 2014 USD ($) shares | May. 21, 2014 USD ($) shares | Dec. 10, 2013 USD ($) $ / shares shares | Jul. 02, 2013 USD ($) shares | Jun. 21, 2013 USD ($) institutional_investor shares | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Net proceeds from issuance of common stock | $ |  |  |  |  |  | $ 0 | $ 103,656 | $ 67,792
Common Stock |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of stock shares | shares |  | 5,150,000 |  |  | 2,268,000 |  |  |
Net proceeds from issuance of common stock | $ | $ 49,900 | $ 50,400 |  |  | $ 29,500 |  |  |
Number of institutional investors for which direct offering has been made | institutional_investor |  |  |  |  | 2 |  |  |
Common Stock | Patriot Financial Partners, L.P. |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of stock shares | shares | 1,900,000 |  | 1,509,450 |  |  |  |  |
Net proceeds from issuance of common stock | $ |  |  | $ 20,000 |  |  |  |  |
Stock issuance and sale, price per share | $ / shares |  |  | $ 13.25 |  |  |  |  |
Common Stock | OCM BOCA Investor, LLC (Oaktree) |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of stock shares | shares | 3,288,947 |  |  |  |  |  |  |
Common Stock | Registered Direct Offering |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of stock shares | shares |  |  |  |  | 1,153,846 |  |  |
Net proceeds from issuance of common stock | $ |  |  |  |  | $ 15,000 |  |  |
Common Stock | Over Allotment Option |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of stock shares | shares |  | 772,500 |  | 360,000 |  |  |  |
Net proceeds from issuance of common stock | $ |  | $ 7,600 |  | $ 4,400 |  |  |  |
Underwriters option period |  | 30 days |  | 30 days |  |  |  |

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