BORROWED FUNDS - Subordinated Debt (Details) - USD ($)
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12 Months Ended |
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Jun. 30, 2014 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Mar. 31, 2007 |
| Subordinated Debt |
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| Balance at end of year |
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$ 33,524,000
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$ 33,524,000
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|
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| Interest expense on borrowed funds |
|
2,226,000
|
2,204,000
|
$ 1,142,000
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| Subordinated Debt |
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| Subordinated Debt |
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| Balance at end of year |
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33,524,000
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33,524,000
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33,524,000
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| Average balance during the year |
|
33,524,000
|
33,524,000
|
19,361,000
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| Maximum month-end balance |
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$ 33,524,000
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$ 33,524,000
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$ 33,524,000
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|
| Weighted-average rate during the year |
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6.64%
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6.57%
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6.01%
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| Weighted-average rate at December 31 |
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6.63%
|
6.57%
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6.53%
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| Interest expense on borrowed funds |
|
$ 2,200,000
|
$ 2,200,000
|
$ 1,100,000
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| Subordinated Debt | Subordinated Debentures |
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| Subordinated Debt |
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|
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| Face amount of debt issued |
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|
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$ 4,000,000
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| Subordinated Debt | Subordinated Debentures | LIBOR |
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| Subordinated Debt |
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| Variable rate basis spread |
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1.62%
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| Subordinated Debt | Convertible Subordinated Promissory Notes Due 2024 |
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| Subordinated Debt |
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| Face amount of debt issued |
$ 29,400,000
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| Debt instrument, investment amount of holder |
100,000
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| Debt instrument, minimum ownership of common stock as percentage of principal acquired |
$ 1,000,000
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| Term of debt instrument |
10 years
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| Debt instrument, maximum interest rate after fifth anniversary |
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9.00%
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| Debt instrument, minimum period from issuance that principal may be prepaid |
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5 years
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| Debt instrument, threshold consecutive trading days for conversion after first, second, third, fourth, and fifth anniversaries of the issuance |
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30 days
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| Debt instrument, conversion price (in dollars per share) |
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$ 16
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| Debt instrument, notice period of intent to prepay |
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20 days
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| Debt instrument, issuance threshold amount requiring consent of holders |
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$ 15,000,000
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| Debt instrument, redemption price percentage |
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100.00%
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| Debt instrument, required period before redemption |
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5 years
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| Subordinated Debt | Convertible Subordinated Promissory Notes Due 2024 | LIBOR |
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| Subordinated Debt |
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| Debt instrument, basis spread on variable rate after fifth anniversary |
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5.00%
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| Subordinated Debt | Convertible Subordinated Promissory Notes Due 2024 | Debtholder Investments Less Than Three Million Dollars |
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| Subordinated Debt |
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| Debt instrument, investment amount of holder |
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$ 3,000,000
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| Debt instrument, minimum ownership of common stock as percentage of principal acquired |
|
30.00%
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| Interest rate on debt security |
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7.00%
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| Subordinated Debt | Convertible Subordinated Promissory Notes Due 2024 | Debtholder Investments Of Three Million Dollars Or Greater |
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| Subordinated Debt |
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| Debt instrument, investment amount of holder |
|
$ 3,000,000
|
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| Debt instrument, minimum ownership of common stock as percentage of principal acquired |
|
30.00%
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| Interest rate on debt security |
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7.50%
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| Subordinated Debt | Convertible Subordinated Promissory Notes Due 2024 | Debtholder Investments Of Ten Million Dollars Or Greater |
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| Subordinated Debt |
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| Debt instrument, investment amount of holder |
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$ 10,000,000
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| Interest rate on debt security |
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7.00%
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