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Borrowings (Other Borrowings) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Long-term Federal Home Loan Bank Advances	$ 35,945	$ 32,001
Convertible note due January 2017 at 4.71% [Member]
Long-term Federal Home Loan Bank Advances	$ 0	10,000
Debt Instrument, Interest Rate, Stated Percentage	4.71%
Amortizing fixed rate borrowing due December 2017 at 1.27% [Member]
Long-term Federal Home Loan Bank Advances	$ 0	4,025
Debt Instrument, Interest Rate, Stated Percentage	1.27%
Amortizing fixed rate borrowing due January 2018 at 0.91% [Member]
Long-term Federal Home Loan Bank Advances	$ 51	662
Debt Instrument, Interest Rate, Stated Percentage	0.91%
Amortizing fixed rate borrowing due December 2018 at 1.42% [Member]
Long-term Federal Home Loan Bank Advances	$ 823	1,634
Debt Instrument, Interest Rate, Stated Percentage	1.42%
Amortizing fixed rate borrowing due January 2019 at 1.39% [Member]
Long-term Federal Home Loan Bank Advances	$ 5,451	0
Debt Instrument, Interest Rate, Stated Percentage	1.39%
Fixed rate term borrowing due August 2019 at 1.61% [Member]
Long-term Federal Home Loan Bank Advances	$ 10,000	0
Debt Instrument, Interest Rate, Stated Percentage	1.61%
Amortizing fixed rate borrowing due June 2020 at 1.49% [Member]
Long-term Federal Home Loan Bank Advances	$ 5,093	7,078
Debt Instrument, Interest Rate, Stated Percentage	1.49%
Amortizing fixed rate borrowing due December 2020 at 1.71% [Member]
Long-term Federal Home Loan Bank Advances	$ 3,051	4,034
Debt Instrument, Interest Rate, Stated Percentage	1.71%
Amortizing fixed rate borrowing due March 2022 at 1.75% [Member]
Long-term Federal Home Loan Bank Advances	$ 3,730	4,568
Debt Instrument, Interest Rate, Stated Percentage	1.75%
Amortizing fixed rate borrowing due October 2022 at 1.88% [Member]
Long-term Federal Home Loan Bank Advances	$ 7,746	$ 0
Debt Instrument, Interest Rate, Stated Percentage	1.88%

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64702-112823

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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