Loans and the Allowance for Loan and Lease Losses (Tables)
 12 Months Ended
Dec. 31, 2016
Receivables [Abstract]  
Loans held for sale [Table Text Block]

The following table presents loans held-for-sale by loan segment:

    2016     2015  
    (in thousands)  
Commercial   $ 70,105     $ -  
Commercial real estate     7,712          
Residential mortgage loans     188       -  
Total carrying amount   $ 78,005     $ -  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

The following table sets forth the composition of the Company’s loan portfolio segments, including net deferred fees, at December 31, 2016 and 2015, respectively:

    2016   2015  
    (in thousands)  
Commercial   $ 553,576   $ 570,116  
Commercial real estate     2,204,710     1,966,696  
Commercial construction     486,228     328,838  
Residential real estate     232,547     233,690  
Consumer     2,380     2,454  
Gross loans     3,479,441     3,101,794  
Net deferred (fees)     (3,609)     (2,787)  
Total loans receivable   $ 3,475,832   $ 3,099,007  
Loans and Leases Receivable Purchase Credit Impaired Loans [Table Text Block]

The carrying amount of those loans is as follows at December 31, 2016 and December 31, 2015.

    2016     2015  
    (in thousands)  
Commercial   $ 7,098     $ 7,078  
Commercial real estate     982       1,775  
Commercial construction     -       -  
Residential real estate     -       328  
Consumer     -       -  
Total carrying amount   $ 8,080     $ 9,181  
Loans and Leases Receivable Purchased Loans [Table Text Block]

The accretable yield, or income expected to be collected, on the purchased credit impaired loans above is as follows at December 31, 2016 and December 31, 2015.

    2016     2015  
    (in thousands)  
Balance at beginning of period   $ 3,599     $ 4,805  
New loans purchased     -       -  
Accretion of income     (739)       (1,206)  
Reclassifications from nonaccretable difference     -       -  
Disposals     -       -  
Balance at end of period   $ 2,860     $ 3,599  
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]

The following table presents nonaccrual loans included in loans receivable by loan segment as of the periods presented.

    2016     2015  
    (in thousands)  
Commercial   $ 1,460     $ 6,586  
Commercial real estate     1,081       9,112  
Commercial construction     -       1,479  
Residential real estate     3,193       3,559  
Total loans receivable on nonaccrual status   $ 5,734     $ 20,736  
Financing Receivable Credit Quality Indicators [Table Text Block]

Credit Quality Indicators

   December 31, 2016 
   Pass   Special
Mention		   Substandard   Doubtful   Total 
   (in thousands) 
Commercial  $539,961   $3,255   $10,360   $     -   $553,576 
Commercial real estate   2,154,343    31,173    19,194    -    2,204,710 
Commercial construction   480,319    3,388    2,521    -    486,228 
Residential real estate   228,990    -    3,557    -    232,547 
Consumer   2,318    -    62    -    2,380 
Total loans  $3,405,931   $37,816   $35,694   $-   $3,479,441 

 

   December 31, 2015 
   Pass   Special
Mention		   Substandard   Doubtful   Total 
   (in thousands) 
Commercial  $462,358   $11,760   $95,998   $-   $570,116 
Commercial real estate   1,919,041    18,990    28,426    239    1,966,696 
Commercial construction   326,697    662    1,479    -    328,838 
Residential real estate   229,426    -    4,264    -    233,690 
Consumer   2,368    -    86    -    2,454 
Total loans  $2,939,890   $31,412   $130,253   $239   $3,101,794 
Impaired Financing Receivables [Table Text Block]

The following table provides an analysis of the impaired loans by segment at December 31, 2016, 2015 and 2014:

   December 31, 2016 
   (dollars in thousands) 
No Related Allowance Recorded  Recorded
Investment		   Unpaid
Principal
Balance		   Related
Allowance		   Average
Recorded
Investment		   Interest
Income
Recognized		 
Commercial  $3,637   $4,063   $        $4,052   $64 
Commercial real estate   18,288    18,288         18,532    250 
Commercial construction   5,909    5,909         5,308    79 
Residential real estate   1,851    2,055         1,908    19 
Consumer   62    62         72    4 
Total  $29,747   $30,377   $    $29,872   $416 

With An Allowance Recorded               
Commercial real estate  $1,244   $1,244   $145   $1,274   $- 
                          
Total                         
Commercial  $3,637   $4,063   $-   $4,052   $64 
Commercial real estate   19,532    19,532    145    19,806    250 
Commercial construction   5,909    5,909    -    5,308    79 
Residential real estate   1,851    2,055    -    1,908    19 
Consumer   62    62    -    72    4 
Total (including related
    allowance)		  $30,991   $31,621   $145   $31,146   $416 

 

   December 31, 2015 
   (dollars in thousands) 
No Related Allowance Recorded  Recorded
Investment		   Unpaid
Principal
Balance		   Related
Allowance		   Average
Recorded
Investment		   Interest
Income
Recognized		 
Commercial  $610   $645            $686   $- 
Commercial real estate   15,517    16,512         6,363    60 
Commercial construction   2,149    2,141         1,535    - 
Residential real estate   3,954    4,329         3,322    10 
Consumer   87    86         96    5 
Total  $22,317   $23,713        $12,002   $75 

 

With An Allowance Recorded               
Commercial  $84,787   $84,449   $6,725   $55,445   $1,895 
Total                         
Commercial  $85,397   $85,094   $6,725   $56,131   $1,895 
Commercial real estate   15,517    16,512    -    6,363    60 
Commercial construction   2,149    2,141    -    1,535      
Residential real estate   3,954    4,329    -    3,322    10 
Consumer   87    86    -    96    5 
Total  $107,104   $108,162   $6,725   $67,447   $1,970 

 

   December 31, 2014 
   (dollars in thousands) 
No Related Allowance Recorded  Recorded
Investment		   Unpaid
Principal
Balance		   Related
Allowance		   Average
Recorded
Investment		   Interest
Income
Recognized		 
Commercial  $481   $527           $494   $- 
Commercial real estate   5,890    6,857         6,276    129 
Residential real estate   3,072    3,406         3,170    41 
Consumer   109    101         107    - 
Total  $9,552   $10,891        $10,047   $170 

 

With An Allowance Recorded               
Commercial  $387   $389   $111   $389   $- 
Commercial real estate   3,520    3,520    150    3,584    171 
Total  $3,907   $3,909   $261   $3,973   $171 
Total                         
Commercial  $868   $917   $111   $883   $- 
Commercial real estate   9,410    10,107    150    9,860    300 
Residential real estate   3,072    3,406    -    3,170    41 
Consumer   109    101    -    106    - 
Total  $13,459   $14,531   $261   $14,019   $341 
Past Due Financing Receivables [Table Text Block]

The following table provides an analysis of the aging of the loans by segment, excluding net deferred fees that are past due at December 31, 2016 and December 31, 2015 by class:

Aging Analysis:

   December 31, 2016 
   30-59 Days
Past Due		   60-89 Days
Past Due		   90 Days or
Greater Past
Due and Still
Accruing		   Nonaccrual   Total Past
Due and
Nonaccrual		   Current   Total Loans
Receivable		  
                             
Commercial  $475   $18   $4,630   $1,460   $6,583   $546,993   $553,576 
Commercial real estate   4,928    1,584    663    1,081    8,256    2,196,454    2,204,710 
Commercial construction   -    -    -    -    -    486,228    486,228 
Residential real estate   2,131    388    -    3,193    5,712    226,835    232,547 
Consumer   -    -    -    -    -    2,380    2,380 
Total  $7,534   $1,990   $5,293   $5,734   $20,551   $3,458,890    3,479,441 

    December 31, 2015  
    30-59 Days
Past Due		     60-89 Days
Past Due		     90 Days or
Greater Past
Due and Still
Accruing		     Nonaccrual     Total Past
Due and
Nonaccrual		     Current     Total Loans
Receivable		   
                                           
Commercial   $ 6,178     $ 3,505     $ -     $ 6,586     $ 16,269     $ 553,847     $ 570,116  
Commercial real estate     1,998       988       -       9,112       12,098       1,954,598       1,966,696  
Commercial construction     -       -       -       1,479       1,479       327,359       328,838  
Residential real estate     -       -       -       3,559       3,559       230,131       233,690  
Consumer     4       9       -       -       13       2,441       2,454  
Total   $ 8,180     $ 4,502     $ -     $ 20,736     $ 33,418     $ 3,068,376       3,101,794  
Schedule of Recorded Investment in Financing Receivables [Table Text Block]

The following tables detail, at the period-end presented, the amount of gross loans (excluding loans held-for-sale) that are evaluated individually, and collectively, for impairment, those acquired with deteriorated quality, and the related portion of the allowance for loan and lease losses that are allocated to each loan portfolio segment: 

   December 31, 2016 
   Commercial   Commercial
real estate		   Commercial
construction		   Residential
real estate		   Consumer   Unallocated   Total 
   (in thousands) 
Allowance for loan and lease losses                                   
Individually evaluated for impairment  $-   $145   $-   $-   $-   $-   $145 
Collectively evaluated for impairment   6,632    12,438    4,789    958    3    779    25,599 
Acquired portfolio   -    -    -    -    -    -    - 
Acquired with deteriorated credit quality   -    -    -    -    -    -    - 
Total  $6,632   $12,583   $4,789   $958   $3   $779   $25,744 
                                    
Gross loans                                   
Individually evaluated for impairment  $3,637   $19,532   $5,909   $1,851   $62        $30,991
Collectively evaluated for impairment   517,869    1,621,745    478,865    163,686    1,757         2,783,922 
Acquired portfolio   24,972    562,451    1,454    67,010    561         656,448 
Acquired with deteriorated credit quality   7,098    982    -    -    -         8,080 
Total  $553,576   $2,204,710   $486,228   $232,547   $2,380        $3,479,441 

 

   December 31, 2015 
   Commercial   Commercial
real estate		   Commercial
construction		   Residential
real estate		   Consumer   Unallocated   Total 
   (in thousands) 
Allowance for loan and lease losses                                   
Individually evaluated for impairment  $6,725   $-   $-   $-   $-   $-   $6,725 
Collectively evaluated for impairment   4,224    10,926    3,253    976    4    464    19,847 
Acquired portfolio   -    -    -    -    -    -    - 
Acquired with deteriorated credit quality   -    -    -    -    -    -    - 
Total  $10,949   $10,926   $3,253   $976   $4   $464   $26,572 
                                    
Gross loans                                   
Individually evaluated for impairment  $85,397   $15,517   $2,149   $3,954   $87        $107,104 
Collectively evaluated for impairment   395,424    1,269,140    315,785    136,633    1,649         2,118,631 
Acquired portfolio   82,217    680,264    10,904    92,775    718         866,878 
Acquired with deteriorated credit quality   7,078    1,775    -    328    -         9,181 
Total  $570,116   $1,966,696   $328,838   $233,690   $2,454        $3,101,794 
Allowance for Credit Losses on Financing Receivables [Table Text Block]

A summary of the activity in the allowance for loan and lease losses is as follows:

    Year Ended December 31, 2016  
    (dollars in thousands)  
    Commercial   Commercial
real estate		   Commercial
construction		   Residential
real estate		   Consumer   Unallocated   Total  
Balance at January 1, 2016   $ 10,949   $ 10,926   $ 3,253   $ 976   $ 4   $ 464   $ 26,572  
Loan charge-offs     (39,343)     (107)     -     (94)     (29)     -     (39,573)  
Recoveries     4     35     -     3     3     -     45  
Provision for loan and lease losses     35,022     1,729     1,536     73     25     315     38,700  
Balance at December 31, 2016   $ 6,632   $ 12,583   $ 4,789   $ 958   $ 3   $ 779   $ 25,744  

 

    Year Ended December 31, 2015  
    (dollars in thousands)  
    Commercial   Commercial
real estate		   Commercial
construction		   Residential
real estate		   Consumer   Unallocated   Total  
Balance at January 1, 2015   $ 3,083   $ 7,799   $ 1,239   $ 1,113   $ 7   $ 919   $ 14,160  
Loans charge-offs     (101)     (406)     -     -     (31)     -     (538)  
Recoveries     13     327     -     2     3     -     345  
Provision for loan and lease losses     7,954     3,206     2,014     (139)     25     (455)     12,605  
Balance at December 31, 2015   $ 10,949   $ 10,926   $ 3,253   $ 976   $ 4   $ 464   $ 26,572  

 

    Year Ended December 31, 2014  
    (dollars in thousands)  
    Commercial   Commercial
real estate		   Commercial
construction		   Residential
real estate		   Consumer   Unallocated   Total  
Balance at January 1, 2014   $ 1,698   $ 5,746   $ 362   $ 990   $ 146   $ 1,391   $ 10,333  
Loans charge-off     (379)     (398)     -     (159)     -     -     (936)  
Recoveries     50     -     -     19     11     -     80  
Provision for loan and lease losses     1,714     2,451     877     263     (150)     (472)     4,683  
Balance at December 31, 2014   $ 3,083   $ 7,799   $ 1,239   $ 1,113   $ 7   $ 919   $ 14,160  
Allowance for Loan and Lease Losses [Table Text Block]

 

December 31, 2016 December 31, 2015
Recorded Recorded
      Investment       ALLL       Investment       ALLL
Troubled debt restructurings
       Beginning balance $ 86,629 $       4,500 $ 2,788 $       -
Additions 26,325 8,250 84,290 4,500
Payoffs/paydowns (2,616) (449)
Transfers (96,520) - -
Other - (12,750) - -
       Ending balance $ 13,818 $ - $ 86,629 $ 4,500
Schedule of Debtor Troubled Debt Restructuring, Current Period [Table Text Block]

The following table presents loans by segment modified as troubled debt restructurings that occurred during the year ended December 31, 2016 (dollars in thousands):

Pre-Modification Post-Modification
Outstanding Outstanding
Number of Recorded Recorded
      Loans       Investment       Investment
Troubled debt restructurings:
       Commercial 19 $ 22,420 $ 22,420
       Commercial real estate 3 2,155 2,155
       Commercial construction 1 1,750 1,750
       Residential real estate - - -
       Consumer - - -
 
              Total 23 $ 26,325 $ 26,325

The following table presents loans by segment modified as troubled debt restructurings that occurred during the year ended December 31, 2015 (dollars in thousands):

Pre-Modification Post-Modification
Outstanding Outstanding
Number of Recorded Recorded
      Loans       Investment       Investment
Troubled debt restructurings:
       Commercial 48 $ 78,466 $ 78,466
       Commercial real estate 3 5,049 5,049
       Commercial construction 1 661 661
       Residential real estate 1 110 110
       Consumer 1 4 4
 
              Total 54 $ 84,290 $ 84,290

The following table presents loans by segment modified as troubled debt restructurings that occurred during the year ended December 31, 2014 (dollars in thousands):

Pre-Modification Post-Modification
Outstanding Outstanding
Number of Recorded Recorded
      Loans       Investment       Investment
Troubled debt restructurings:
       Commercial 1 $ 672 $ 289
       Commercial real estate - - -
       Commercial construction - - -
       Residential real estate 2 275 272
 
              Total 3 $ 947 $ 561