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Goodwill and Intangible Assets, Intangible Assets (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017
Intangible assets subject to amortization [Abstract] |  |
Gross Carrying Value | $ 7,086,000 | $ 6,605,000
Accumulated Amortization | 3,320,000 | 2,612,000
Fully amortized intangible assets, retired | $ 0 | 33,000
Trademarks [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 9 years |
Gross Carrying Value | $ 885,000 | 705,000
Accumulated Amortization | $ 316,000 | 191,000
Customer Relationships [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 13 years |
Gross Carrying Value | $ 5,900,000 | 5,900,000
Accumulated Amortization | $ 2,937,000 | 2,421,000
Developed Technology [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 3 years |
Gross Carrying Value | $ 301,000 | 0
Accumulated Amortization | $ 67,000 | $ 0

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- 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://www.xbrl.org/2003/role/presentationRef -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 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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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/presentationRef -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 + Details
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