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Goodwill and Intangible Assets, Intangible Assets Subject to Amortization (Details) - USD ($)	12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Intangible assets subject to amortization [Abstract]
Gross Carrying Value	$ 12,933,000	$ 7,086,000
Accumulated Amortization	$ 4,502,000	3,320,000
Trademarks [Member]
Intangible assets subject to amortization [Abstract]
Weighted Average Amortization Period	9 years
Gross Carrying Value	$ 1,007,000	885,000
Accumulated Amortization	$ 464,000	316,000
Customer Relationships [Member]
Intangible assets subject to amortization [Abstract]
Weighted Average Amortization Period	11 years
Gross Carrying Value	$ 8,610,000	5,900,000
Accumulated Amortization	$ 3,547,000	2,937,000
Order Backlog [Member]
Intangible assets subject to amortization [Abstract]
Weighted Average Amortization Period	6 months
Gross Carrying Value	$ 325,000	0
Accumulated Amortization	$ 180,000	0
Developed Technology [Member]
Intangible assets subject to amortization [Abstract]
Weighted Average Amortization Period	5 years
Gross Carrying Value	$ 2,991,000	301,000
Accumulated Amortization	$ 311,000	$ 67,000

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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