Leases Leases (Details) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2019 USD ($)	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	8 years 3 months	8 years 3 months
Finance Lease, Weighted Average Remaining Lease Term	3 years	3 years
Operating Lease, Weighted Average Discount Rate, Percent	2.99%	2.99%
Finance Lease, Weighted Average Discount Rate, Percent	1.75%	1.75%
Operating Lease, Expense	$ 735	$ 1,464
Finance Lease, Right-of-Use Asset, Amortization	5	5
Operating Lease, Payments	691	1,377
Finance Lease, Payments	$ 16	$ 16

Amount of cash outflow for principal payment on finance lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Weighted average discount rate for finance lease calculated at point in time.

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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-Publisher FASB
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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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