Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
Amortized intangible assets:
Gross carrying amount	$ 24,445	$ 24,445
Accumulated amortization	(23,881)	(23,839)
Net carrying amount	564	606
Unamortized intangible assets:
Accumulated impairment	(570)	(570)
Carrying amount	8,400	8,400
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Accumulated Impairment	(1,391)	(1,391)
Finite Lived Software Development Costs Gross	37,807	33,261
Finite Lived Software Development Costs Accumulated Amortization	(1,669)	(1,443)
Finite Lived Software Development Costs Net	36,138	31,818
Total intangible assets, gross carrying amount	32,845	32,845
Intangible Assets, Net (Excluding Goodwill)	8,964	9,006
Trade names [Member]
Unamortized intangible assets:
Carrying amount, excluding accumulated impairment	9,200	9,200
Customer relationships [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	10,775	10,775
Accumulated amortization, excluding accumulated impairment	(10,775)	(10,775)
Net carrying amount, excluding accumulated impairment	0	0
Non-competition agreements [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	2,700	2,700
Accumulated amortization, excluding accumulated impairment	(2,700)	(2,700)
Net carrying amount, excluding accumulated impairment	0	0
Developed technology [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	10,660	10,660
Accumulated amortization, excluding accumulated impairment	(10,307)	(10,277)
Net carrying amount, excluding accumulated impairment	353	383
Patented Technology [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	80	80
Accumulated amortization, excluding accumulated impairment	(80)	(80)
Net carrying amount, excluding accumulated impairment	0	0
Software Development Costs [Member]
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Gross Excluding Accumulated Impairment	6,359	6,359
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	(1,669)	(1,443)
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	4,690	4,916
Project Expenditures Not Yet In Use [Member]
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Gross Excluding Accumulated Impairment	32,839	28,293
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	0	0
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	$ 32,839	$ 28,293