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Deposits (Tables)
12 Months Ended
Dec. 31, 2017
Deposits [Abstract]  
Schedule of Deposits [Table Text Block]
As of December 31, 2017 and 2016, deposits consisted of the following (in thousands):
 
 
2017
 
2016
Demand deposits:
 
 
 
 
Non-interest bearing
 
$
480,283


$
471,206

Interest-bearing
 
700,376


716,204

Savings
 
359,065


356,740

Money market
 
390,880


432,656

Time deposits
 
344,035


353,081

Total deposits
 
$
2,274,639


$
2,329,887

Components of deposit interest expense [Table Text Block]
Total interest expense on deposits for the years ended December 31, 2017, 2016 and 2015 was as follows (in thousands):
 
 
2017
 
2016
 
2015
Interest-bearing demand
 
$
588

 
$
274

 
$
117

Savings
 
486

 
445

 
398

Money market
 
1,224

 
719

 
605

Time deposits
 
1,697

 
1,275

 
1,162

Total
 
$
3,995

 
$
2,713

 
$
2,282


Aggregate Time Deposits more than 100,000 and related interest expense [Table Text Block]
As of December 31, 2017, 2016 and 2015, 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):
 
 
2017
 
2016
 
2015
Outstanding
 
$
167,073

 
$
151,262

 
$
88,855

Interest expense for the year
 
730

 
423

 
493



Maturities of Time Deposits [Table Text Block]
The following table shows the amount of maturities for all time deposits as of December 31, 2017 (in thousands):
Less than 1 year
$
224,622

1 year to 2 years
55,529

2 years to 3 years
35,529

3 years to 4 years
15,568

4 years to 5 years
11,914

Over 5 years
873

Total
$
344,035