Intangible Assets - Schedule of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014
Amortized intangible assets:
Gross carrying amount	$ 24,215	$ 24,215
Accumulated amortization	(23,430)	(22,789)
Net carrying amount	785	1,426
Unamortized intangible assets:
Accumulated impairment	(900)	(900)
Carrying amount	9,200	9,200
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Accumulated Impairment	(9,493)	(9,493)
Finite Lived Software Development Costs Gross	25,318	17,491
Finite Lived Software Development Costs Accumulated Amortization	(820)	(270)
Finite Lived Software Development Costs Net	24,498	17,221
Total intangible assets, gross carrying amount	33,415	33,415
Intangible Assets, Net (Excluding Goodwill)	9,985	10,626
Trade names [Member]
Unamortized intangible assets:
Carrying amount, excluding accumulated impairment	10,100	10,100
Customer relationships [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	10,775	10,775
Accumulated amortization, excluding accumulated impairment	(10,530)	(10,080)
Net carrying amount, excluding accumulated impairment	245	695
Non-competition agreements [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	2,700	2,700
Accumulated amortization, excluding accumulated impairment	(2,604)	(2,473)
Net carrying amount, excluding accumulated impairment	96	227
Developed technology [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	10,660	10,660
Accumulated amortization, excluding accumulated impairment	(10,216)	(10,156)
Net carrying amount, excluding accumulated impairment	444	504
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	15,561	14,587
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	(820)	(270)
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	14,741	14,317
Project Expenditures Not Yet In Use [Member]
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Gross Excluding Accumulated Impairment	19,250	12,397
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	0	0
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	$ 19,250	$ 12,397