Description of the Business and Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2013

Description of the Business and Significant Accounting Policies

Schedule of changes in the allowance for doubtful accounts

The following table presents the changes in the allowance for doubtful accounts (in thousands):

	Fiscal Year Ended January 31,
(in thousands)	2013			2012			2011
Balance at beginning of period	$	557		$	400		$	321
Add: bad debt expense		286			247			444
Less: write-offs, net of recoveries		(22	)		(90	)		(365	)
Balance at end of period	$	821		$	557		$	400

Schedule of estimated useful lives of property and equipment

	Useful Life
Computer equipment and software	3 years
Furniture and fixtures	5 years
Leasehold improvements	Shorter of the useful life of the asset or the lease term

Schedule of expected future amortization for capitalized computer software costs developed for internal use

As of January 31, 2013, expected future amortization for capitalized computer software costs developed for internal use is as follows:

Fiscal years:
2014	$	555,000
2015		555,000
2016		555,000
2017		555,000
2018		278,000
	$	2,498,000