Commitments and Contingencies (Details Textual) (USD $)	1 Months Ended	3 Months Ended
	Sep. 26, 2012	Mar. 31, 2013 Site	Mar. 31, 2012	Dec. 31, 2012	Aug. 21, 2007
Commitments and Contingencies (Textual) [Abstract]
Class B common stock of Visa Inc		16,005,191		16,000,838	15,814,662
Commitments and Contingencies (Additional Textual) [Abstract]
Reserves to satisfy Federal regulatory requirements		$ 35,533,000		$ 31,594,000
Number of sites leased under non-cancelable operating leases		47
Rent expense under operating leases		791,000	832,000
Conversion ratio		0.4206
Former employee settlement minimum amount	2,039,500
Former employee settlement maximum amount	2,500,000
Recorded expense and accrued liability in anticipation of approval of this settlement	2,090,000
Common Class A [Member]
Commitments and Contingencies (Textual) [Abstract]
The value of the Class A shares		$ 169.84
Value of unredeemed Class A equivalent shares		$ 730,000
Common Class B [Member]
Commitments and Contingencies (Textual) [Abstract]
Class B common stock of Visa Inc		10,214