(2) Share-Based Payment Arrangements (Details)					9 Months Ended		9 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2013 FalconStor Software, Inc., 2006 Incentive Stock Plan Member	Jun. 30, 2013 FalconStor Software, Inc., 2006 Incentive Stock Plan Member	Sep. 30, 2013 FalconStor Software, Inc., 2013 Outside Directors Equity Compensation Plan
Shares Authorized						13,455,546	400,000
Shares Available for grant						3,480,696	350,000
Shares Outstanding	8,732,125	11,200,955	10,876,047	11,360,842		7,314,498	50,000
Last date for grant of shares					May 17, 2016		May 09, 2016