Supplemental Financial Information - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Mar. 31, 2017
Intangible Assets
Gross Carrying Amount	$ 7,018	$ 5,874
Accumulated Amortization	(4,698)	(4,376)
Net Book Value	2,320	1,498
Technology
Intangible Assets
Gross Carrying Amount	1,856	1,856
Accumulated Amortization	(1,852)	(1,828)
Net Book Value	4	28
Customer contracts / relationships
Intangible Assets
Gross Carrying Amount	750	750
Accumulated Amortization	(746)	(726)
Net Book Value	4	24
Trade names and non-compete agreements
Intangible Assets
Gross Carrying Amount	1,110	1,110
Accumulated Amortization	(1,087)	(1,066)
Net Book Value	23	44
Capitalized software development costs
Intangible Assets
Gross Carrying Amount	3,302	2,158
Accumulated Amortization	(1,013)	(756)
Net Book Value	$ 2,289	$ 1,402

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

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

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