(2) Share-Based Payment Arrangements (Details 1)	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012
Shares outstanding	11,200,955	10,876,047	11,360,842
FalconStor Software, Inc., 2000 Stock Option Plan Member
Shares Available for grant	0
Shares outstanding	1,646,397
2004 Outside Directors Stock Option Plan Member
Shares Available for grant	0
Shares outstanding	190,000
FalconStor Software, Inc., 2007 Outside Directors Equity Compensation Plan Member
Shares Available for grant	0
Shares outstanding	170,000
Stand-Alone Stock Option Agreement between the Company and James P. McNiel Member
Shares Available for grant	0
Shares outstanding	805,200
FalconStor 2010 Outside Directors Equity Compensation Plan
Shares Available for grant	0
Shares outstanding	50,500