|
Loans and reserve for credit losses (Reserve for Loan Losses and Recorded Investment in Loans) (Details) (USD $)
In Thousands, unless otherwise specified
|
Dec. 31, 2014
|
Dec. 31, 2013
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Total |
$ 22,053 |
$ 20,857 |
| Total loans |
1,492,540 |
996,232 |
| Commercial real estate |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
60 |
665 |
| Reserve for loan losses Collectively evaluated for impairment |
5,554 |
8,900 |
| Reserve for loan losses Total |
5,614 |
9,565 |
| Recorded investment in loans Individually evaluated for impairment |
28,947 |
32,227 |
| Recorded investment in loans, Collectively evaluated for impairment |
727,705 |
519,785 |
| Total loans |
756,652 |
552,012 |
| Construction |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
0 |
0 |
| Reserve for loan losses Collectively evaluated for impairment |
1,133 |
535 |
| Reserve for loan losses Total |
1,133 |
535 |
| Recorded investment in loans Individually evaluated for impairment |
963 |
1,987 |
| Recorded investment in loans, Collectively evaluated for impairment |
124,465 |
50,516 |
| Total loans |
125,428 |
52,503 |
| Residential real estate |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
0 |
62 |
| Reserve for loan losses Collectively evaluated for impairment |
2,121 |
2,319 |
| Reserve for loan losses Total |
2,121 |
2,381 |
| Recorded investment in loans Individually evaluated for impairment |
317 |
430 |
| Recorded investment in loans, Collectively evaluated for impairment |
204,370 |
101,127 |
| Total loans |
204,687 |
101,557 |
| Commercial and industrial |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
25 |
56 |
| Reserve for loan losses Collectively evaluated for impairment |
6,819 |
6,205 |
| Reserve for loan losses Total |
6,844 |
6,261 |
| Recorded investment in loans Individually evaluated for impairment |
3,495 |
5,823 |
| Recorded investment in loans, Collectively evaluated for impairment |
364,980 |
248,347 |
| Total loans |
368,475 |
254,170 |
| Consumer |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
0 |
0 |
| Reserve for loan losses Collectively evaluated for impairment |
1,047 |
1,401 |
| Reserve for loan losses Total |
1,047 |
1,401 |
| Recorded investment in loans Individually evaluated for impairment |
0 |
0 |
| Recorded investment in loans, Collectively evaluated for impairment |
37,298 |
35,990 |
| Total loans |
37,298 |
35,990 |
| Allocated Financing Receivables |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Individually evaluated for impairment |
85 |
783 |
| Reserve for loan losses Collectively evaluated for impairment |
16,674 |
19,360 |
| Reserve for loan losses Total |
16,759 |
20,143 |
| Recorded investment in loans Individually evaluated for impairment |
33,722 |
40,467 |
| Recorded investment in loans, Collectively evaluated for impairment |
1,458,818 |
955,765 |
| Total loans |
1,492,540 |
996,232 |
| Unallocated |
|
|
| Financing Receivable, Allowance for Credit Losses [Line Items] |
|
|
| Reserve for loan losses Total |
$ 5,294 |
$ 714 |