Acquisitions (Narrative) (Details) (USD $)	9 Months Ended		0 Months Ended		0 Months Ended	6 Months Ended	0 Months Ended	12 Months Ended
	Sep. 30, 2013	Nov. 09, 2012	May 31, 2012 Amadesa Ltd. [Member]	Sep. 30, 2013 Amadesa Ltd. [Member]	Jun. 13, 2012 Look.io [Member]	Jun. 30, 2012 Look.io [Member]	Nov. 09, 2012 Engage Pty Ltd. [Member]	Dec. 31, 2012 Engage Pty Ltd. [Member]
Business Acquisition [Line Items]
Acquisition costs incurred to acquire entity						$ 200,000		$ 500,000
Acquisition costs included in intangible assets		3,600,000		500,000	767,000		3,600,000
Business acquisition, purchase price cash		10,591,000			2,884,000		10,600,000
Business acquisition, shares of common stock issued					109,517
Business acquisition, value of shares of common stock issued					2,000,000
Acquired intangible asset, aggregate cash consideration			10,300,000
Potential shares of common stock in addition to purchase price					30,422
Potential shares of common stock, value					600,000		1,700,000
Business acquisition, acquisition Date			May 31, 2012		Jun. 13, 2012		Nov. 09, 2012
Business acquisition, cash paid					900,000
Weighted average shares outstanding used in basic and diluted net income per share as of the acquisition date					109,517
Assets acquired liabilities assumed, net							800,000
Net working capital adjustment	$ 79,000