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Fair Value Measurements - Level 3 Inputs (Details) - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans receivable	$ 594,624	$ 585,737
Nonrecurring | Commercial and industrial | Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans receivable	$ 482
Management adjustments for depreciation in values depending on property types (percent)	65.00%
Nonrecurring | Commercial and industrial | Impaired loans | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraiser adjustments on sales comparable data (percent)	0.00%
Nonrecurring | Commercial and industrial | Impaired loans | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraiser adjustments on sales comparable data (percent)	20.00%
Nonrecurring | Equity loans and lines of credit | Impaired loans
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Loans receivable	$ 120
Management adjustments for depreciation in values depending on property types (percent)	58.00%
Nonrecurring | Equity loans and lines of credit | Impaired loans | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraiser adjustments on sales comparable data (percent)	3.00%
Nonrecurring | Equity loans and lines of credit | Impaired loans | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Appraiser adjustments on sales comparable data (percent)	22.00%

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Glossary Loan
-URI http://asc.fasb.org/extlink&oid=6517073

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