Bank subsidiary (Details 11) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2014	Dec. 31, 2013
Recorded investment:
With no related allowance recorded	$ 16,632	$ 16,487
With an allowance recorded	34,672	36,031
Recorded investment	51,304	52,518
Unpaid principal balance:
With no related allowance recorded	21,757	21,717
With an allowance recorded	38,129	39,185
Unpaid principal balance	59,886	60,902
Related Allowance	5,685	5,338
Average recorded investment:
With no related allowance recorded	17,544	24,631
With an allowance recorded	33,896	34,679
Average recorded investment	51,440	59,310
Interest income recognized:
With no related allowance recorded	147	882
With an allowance recorded	281	1,072
Interest income recognized	428	1,954
Residential 1-4 family
Recorded investment:
With no related allowance recorded	9,573	9,708
With an allowance recorded	6,764	6,216
Recorded investment	16,337	15,924
Unpaid principal balance:
With no related allowance recorded	11,874	12,144
With an allowance recorded	6,784	6,236
Unpaid principal balance	18,658	18,380
Related Allowance	906	642
Average recorded investment:
With no related allowance recorded	10,480	11,674
With an allowance recorded	5,605	6,455
Average recorded investment	16,085	18,129
Interest income recognized:
With no related allowance recorded	88	386
With an allowance recorded	103	372
Interest income recognized	191	758
Commercial real estate
Recorded investment:
With no related allowance recorded		0
With an allowance recorded	4,558	4,604
Recorded investment	4,558	4,604
Unpaid principal balance:
With no related allowance recorded		0
With an allowance recorded	4,668	4,686
Unpaid principal balance	4,668	4,686
Related Allowance	1,543	1,118
Average recorded investment:
With no related allowance recorded	0	802
With an allowance recorded	4,573	5,745
Average recorded investment	4,573	6,547
Interest income recognized:
With no related allowance recorded		0
With an allowance recorded	2	152
Interest income recognized	2	152
Home equity line of credit
Recorded investment:
With no related allowance recorded	641	672
Recorded investment	641	672
Unpaid principal balance:
With no related allowance recorded	1,205	1,227
Unpaid principal balance	1,205	1,227
Average recorded investment:
With no related allowance recorded	649	623
With an allowance recorded		0
Average recorded investment	649	623
Interest income recognized:
With no related allowance recorded	3	2
Interest income recognized	3	2
Residential land
Recorded investment:
With no related allowance recorded	3,080	2,622
With an allowance recorded	7,271	7,452
Recorded investment	10,351	10,074
Unpaid principal balance:
With no related allowance recorded	4,047	3,612
With an allowance recorded	7,442	7,623
Unpaid principal balance	11,489	11,235
Related Allowance	1,102	1,332
Average recorded investment:
With no related allowance recorded	3,016	6,675
With an allowance recorded	7,168	6,844
Average recorded investment	10,184	13,519
Interest income recognized:
With no related allowance recorded	56	482
With an allowance recorded	132	409
Interest income recognized	188	891
Commercial loans
Recorded investment:
With no related allowance recorded	3,320	3,466
With an allowance recorded	16,079	17,759
Recorded investment	19,399	21,225
Unpaid principal balance:
With no related allowance recorded	4,613	4,715
With an allowance recorded	19,235	20,640
Unpaid principal balance	23,848	25,355
Related Allowance	2,134	2,246
Average recorded investment:
With no related allowance recorded	3,381	4,837
With an allowance recorded	16,550	15,635
Average recorded investment	19,931	20,472
Interest income recognized:
With no related allowance recorded	0	12
With an allowance recorded	44	139
Interest income recognized	44	151
Consumer loans
Recorded investment:
With no related allowance recorded	18	19
Recorded investment	18	19
Unpaid principal balance:
With no related allowance recorded	18	19
Unpaid principal balance	18	19
Average recorded investment:
With no related allowance recorded	18	20
Average recorded investment	$ 18	$ 20

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5212-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 17

-URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5258-111524

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-SubTopic 10

-Section 50

-Paragraph 14A

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953550-111524

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