Summary of Significant Accounting Policies (Textual) (Details)	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2017 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Mar. 31, 2018 USD ($) policy	Mar. 31, 2017 USD ($)	Mar. 31, 2016 USD ($)	Apr. 01, 2017 USD ($)
Significant Accounting Policies [Line Items]
Support Maintenance and Subscription Revenue					$ 69,068,000	$ 63,308,000	$ 60,104,000
Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount	$ 4,400,000
Capital lease assets as a percentage of total assets					1.00%
Goodwill					$ 19,622,000	$ 19,622,000
Revenues from international operations					8.00%	6.00%	4.00%
Goodwill, Impairment Loss					$ 0	$ 0	$ 0
Number of corporate owned life insurance policies redeemed					2	2
Proceeds from corporate-owned life insurance policies					$ 2,200,000
Aggregate cash surrender value of underlying life insurance, net of policy loans					900,000
Present value of future proceeds to be received under corporate life insurance policies, liability					100,000
Sales revenue, services, net					(24,593,000)	$ (26,031,000)	(18,817,000)
Advertising and promotion expense					2,700,000	2,600,000	$ 1,700,000
Software development costs, net					45,181,000	46,999,000
Property and equipment, net					$ 17,512,000	16,000,000
Minimum [Member]
Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction					3 years
Finite-lived intangible asset, useful life					2 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction					5 years
Finite-lived intangible asset, useful life					8 years
Building and building improvements [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					7 years
Building and building improvements [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					30 years
Furniture [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					7 years
Furniture [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					10 years
Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					3 years
Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					10 years
Software and Software Development Costs [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					3 years
Software and Software Development Costs [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life					10 years
Customer relationships [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					2 years
Customer relationships [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					7 years
Non-competition agreements [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					2 years
Non-competition agreements [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					8 years
Developed technology [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					3 years
Developed technology [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					8 years
Supplier relationships [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					2 years
Supplier relationships [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Finite-lived intangible asset, useful life					8 years
Restatement Adjustment [Member]
Significant Accounting Policies [Line Items]
Support Maintenance and Subscription Revenue				$ 1,100,000
Sales revenue, services, net		$ 100,000	$ 100,000
Property and equipment, net						$ 1,100,000
Retained Earnings [Member]
Significant Accounting Policies [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption								$ (741,000)
Retained Earnings [Member] | Accounting Standards Update 2016-09 [Member]
Significant Accounting Policies [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 700,000