Intangible Assets - Schedule of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Mar. 31, 2013
Amortized intangible assets:
Gross carrying amount	$ 24,215	$ 23,610
Accumulated amortization	(22,468)	(21,527)
Net carrying amount	1,747	2,083
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	13,701	5,596
Finite Lived Software Development Costs Accumulated Amortization	(88)	0
Finite Lived Software Development Costs Net	13,613	5,596
Total intangible assets, gross carrying amount	33,415	32,810
Intangible Assets, Net (Excluding Goodwill)	10,947	11,283
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	(9,855)	(9,179)
Net carrying amount, excluding accumulated impairment	920	1,596
Non-competition agreements [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	2,700	2,700
Accumulated amortization, excluding accumulated impairment	(2,408)	(2,213)
Net carrying amount, excluding accumulated impairment	292	487
Developed technology [Member]
Amortized intangible assets:
Gross carrying amount, excluding accumulated impairment	10,660	10,055
Accumulated amortization, excluding accumulated impairment	(10,125)	(10,055)
Net carrying amount, excluding accumulated impairment	535	0
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	12,447	9,493
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	(88)	0
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	12,359	9,493
Project Expenditures Not Yet In Use [Member]
Finite Lived Software Development Costs [Abstract]
Finite Lived Software Development Costs Gross Excluding Accumulated Impairment	10,747	5,596
Finite Lived Software Development Costs Accumulated Amortization Excluding Accumulated Impairment	0	0
Finite Lived Software Development Costs, Net Excluding, Accumulated Impairment	$ 10,747	$ 5,596