Business Combination (Details) (USD $)	3 Months Ended								12 Months Ended			1 Months Ended	3 Months Ended	12 Months Ended				12 Months Ended
	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Oct. 31, 2011 DeviceAnywhere	Dec. 31, 2011 DeviceAnywhere	Sep. 30, 2012 DeviceAnywhere	Sep. 30, 2011 DeviceAnywhere	Oct. 18, 2011 DeviceAnywhere	Sep. 30, 2012 DeviceAnywhere Technology	Sep. 30, 2012 DeviceAnywhere Technology Minimum	Sep. 30, 2012 DeviceAnywhere Technology Maximum	Sep. 30, 2012 DeviceAnywhere Backlog	Sep. 30, 2012 DeviceAnywhere Customer relationships	Sep. 30, 2012 DeviceAnywhere Trademarks	Sep. 30, 2012 DeviceAnywhere Noncompete agreements	Oct. 18, 2011 DeviceAnywhere 2011 earnout	Oct. 18, 2011 DeviceAnywhere 2012 earnout
Business Combination
Payments made in cash under merger agreement									$ 60,000,000			$ 60,000,000
Contingent consideration																30,000,000								15,000,000	15,000,000
Fair value of the acquisition-related contingent consideration																2,000,000
Change in estimated fair value of acquisition-related contingent consideration									2,000,000				2,000,000
Total acquisition date fair value of the consideration transferred																60,000,000
Cash allocated to an escrow fund to satisfy indemnification obligations pursuant to the merger agreement																6,000,000
Amount of debt and liabilities of acquiree settled																4,500,000
Estimated fair values of the assets and liabilities assumed
Accounts receivable																2,758,000
Other assets, including deferred tax assets																1,009,000
Fixed assets																1,208,000
Identifiable intangible assets														13,170,000		13,170,000	6,470,000			2,700,000	2,600,000	1,100,000	300,000
Total identifiable assets acquired																18,145,000
Accounts payable and other liabilities																(2,334,000)
Contingent consideration																(2,000,000)
Deferred revenue														(3,100,000)		(3,126,000)
Total liabilities assumed																(7,460,000)
Net identifiable assets acquired																10,685,000
Goodwill																49,315,000
Amount paid									60,000,000			60,000,000
Weighted average cost of capital rate used to discount estimate net cash flows to their present values (as a percent)												12.50%
Useful life																		3 years	6 years	1 year	6 years	8 years	3 years
Results of Operations
Net revenue	30,392,000	30,276,000	30,592,000	33,079,000	27,504,000	26,586,000	24,107,000	24,833,000	124,339,000	103,030,000	79,851,000			16,489,000
Net income (loss)	226,000	27,000	334,000	4,121,000	39,751,000	4,153,000	3,331,000	3,627,000	4,708,000	50,862,000	1,686,000			(6,871,000)
Amortization of identifiable intangibles														4,400,000
Stock-based compensation									5,558,000	3,360,000	3,365,000			900,000
Transaction and integration expenses														300,000
Unaudited Pro Forma Financial Information
Net revenue														124,938,000	123,560,000
Net income														$ 4,617,000	$ 43,705,000
Basic net income per share (in dollars per share)														$ 0.26	$ 2.72
Diluted net income per share (in dollars per share)														$ 0.25	$ 2.50