Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Accounting Policies [Line Items]
Property, plant and equipment impairment	$ 0	$ 0	$ 0
Intangible asset impairment	0	0	0
Common stock, par value	$ 0.001	$ 0.001
Advertising expense	4,778,000	4,636,000	5,224,000
Minimum [Member]
Accounting Policies [Line Items]
Catalogs and other direct marketing pieces, useful life	1 year
Maximum [Member]
Accounting Policies [Line Items]
Catalogs and other direct marketing pieces, useful life	2 years
Building and improvements | Minimum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	30 years
Building and improvements | Maximum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Computer Hardware [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Computer Hardware [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Software [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Software [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Non-compete agreements [Member] | Minimum [Member]
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	3 years
Non-compete agreements [Member] | Maximum [Member]
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	5 years
Acquired backlog [Member]
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	1 year
Customer Relationships | Minimum [Member]
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	4 years
Customer Relationships | Maximum [Member]
Accounting Policies [Line Items]
Finite-lived intangible asset, useful life	20 years
Provision for Doubtful Accounts [Member]
Accounting Policies [Line Items]
Provision for doubtful accounts expense	$ 4,324,000	$ 3,556,000	$ 3,006,000