Allowance for Loan Losses Allowance for Loan Losses (Details 4) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Modifications [Line Items]
Beginning Balance	$ 6,919	$ 8,158
Added	175	268
Charged Off	(40)	(55)
Payments	(235)	(387)
Ending Balance	6,819	7,984
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	2,672	3,302
Added	0	0
Charged Off	0	0
Payments	(95)	(241)
Ending Balance	2,577	3,061
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	3,568	4,068
Added	106	227
Charged Off	0	(7)
Payments	(67)	(90)
Ending Balance	3,607	4,198
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Beginning Balance	679	788
Added	69	41
Charged Off	(40)	(48)
Payments	(73)	(56)
Ending Balance	$ 635	$ 725

Financing Receivable, Impaired, Troubled Debt Restructuring, Additions During Period

No definition available.

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- Definition

Financing Receivable, Impaired, Troubled Debt Restructuring, Payments During Period

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554

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- Definition

Reflects the amount of the write-down related to a troubled debt restructuring.

+ References

+ Details

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