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Deposits (Tables) | 12 Months Ended
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Dec. 31, 2016
Deposits [Abstract] |
Schedule of Deposits [Table Text Block] | As of December 31, 2016 and 2015, deposits consisted of the following (in thousands):
|  | 2016 |  | 2015
Demand deposits: |  |  |  |
Non-interest bearing |  | $ | 471,206 |  |  | $ | 342,636 |
Interest-bearing |  | 716,204 |  |  | 490,838 |
Savings |  | 356,740 |  |  | 325,836 |
Money market |  | 432,656 |  |  | 329,820 |
Time deposits |  | 353,081 |  |  | 243,438 |
Total deposits |  | $ | 2,329,887 |  |  | $ | 1,732,568 |
Components of deposit interest expense [Table Text Block] | Total interest expense on deposits for the years ended December 31, 2016, 2015 and 2014 was as follows (in thousands):
|  | 2016 |  | 2015 |  | 2014
Interest-bearing demand |  | $ | 274 |  |  | $ | 117 |  |  | $ | 101 |
Savings |  | 445 |  |  | 398 |  |  | 375 |
Money market |  | 719 |  |  | 605 |  |  | 588 |
Time deposits |  | 1,275 |  |  | 1,162 |  |  | 1,287 |
Total |  | $ | 2,713 |  |  | $ | 2,282 |  |  | $ | 2,351 |
Aggregate Time Deposits more than 100,000 and related interest expense [Table Text Block] | As of December 31, 2016, 2015 and 2014, the aggregate amount of time deposits in denominations of more than $100,000 and the total interest expense on such deposits was as follows (in thousands):
|  | 2016 |  | 2015 |  | 2014
Outstanding |  | $ | 151,262 |  |  | $ | 88,855 |  |  | $ | 98,445 |
Interest expense for the year |  | 423 |  |  | 493 |  |  | 598 |
Maturities of Time Deposits [Table Text Block] | The following table shows the amount of maturities for all time deposits as of December 31, 2016:
Less than 1 year | $ | 199,370 |
1 year to 2 years | 83,005 |
2 years to 3 years | 26,528 |
3 years to 4 years | 29,072 |
4 years to 5 years | 13,965 |
Over 5 years | 1,141 |
Total | $ | 353,081 |

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