Borrowings - FHLB Advances (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
FHLB Advances
Secured Debt	$ 127,029	$ 140,029
FHLB Advances \| Fixed Rate Hybrid Advances
FHLB Advances
Secured Debt	17,000
FHLB Advances \| Convertible Advances
FHLB Advances
Secured Debt	30,000
1.28%Fixed Rate Hybrid Advance \| Fixed Rate Hybrid Advances
FHLB Advances
Secured Debt	$ 2,500
Interest Rate	1.28%
Maturity Date	Aug. 30, 2018
1.95% Fixed Rate Hybrid Advance \| Fixed Rate Hybrid Advances
FHLB Advances
Secured Debt	$ 7,000
Interest Rate	1.95%
Maturity Date	Dec. 04, 2019
1.78% Fixed Rate Hybrid Advance \| Fixed Rate Hybrid Advances
FHLB Advances
Secured Debt	$ 7,500
Interest Rate	1.78%
Maturity Date	Aug. 21, 2020
4.06% Convertible Advances \| Convertible Advances
FHLB Advances
Secured Debt	$ 5,000
Interest Rate	4.06%
Maturity Date	Oct. 25, 2017
Next Conversion Option Date	Jan. 25, 2017
2.93% Convertible Advances \| Convertible Advances
FHLB Advances
Secured Debt	$ 5,000
Interest Rate	2.93%
Maturity Date	Nov. 27, 2017
Next Conversion Option Date	Feb. 27, 2017
3.59% Convertible Advances \| Convertible Advances
FHLB Advances
Secured Debt	$ 5,000
Interest Rate	3.59%
Maturity Date	Jun. 06, 2018
1.48% Convertible Advances \| Convertible Advances
FHLB Advances
Secured Debt	$ 7,500
Interest Rate	1.48%
Maturity Date	Sep. 19, 2022
1.96% Convertible Advances \| Convertible Advances
FHLB Advances
Secured Debt	$ 7,500
Interest Rate	1.96%
Maturity Date	Sep. 29, 2023

The next date on which the conversion features may be exercised to become effective, in CCYY-MM-DD format.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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- Definition

States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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