Summary Of Significant Accounting Policies (Investments And Funds Held For Customers) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]
Available for Sale Securities Debt Effective Maturity				4 years 2 months 12 days
Document Period End Date				Jun. 30, 2013
Proceeds from sales, maturities and calls of securities available for sale	$ 8,100		$ 44,500	$ 15,130		$ 71,492
Cash and Cash Equivalents, Amortized Cost	18,376	[1]		18,376	[1]		13,867	[1]
Cash And Cash Equivalents Unrealized Gain Loss	0			0			0
Money market funds	18,376			18,376			13,867
Money market funds, Amortized Cost							15,084
Money Market Funds, Unrealized Gain Loss							0
Total securities available for sale, Amortized Cost	75,775	[1]		75,775	[1]		59,057
Total securities available for sale, Unrealized Gain (Loss)	(1,806)			(1,806)			264
Total securities available for sale, Fair Value	73,969			73,969			59,321
Total investments and funds held for clients, Amortized Cost	94,151	[1]		94,151	[1]		88,008
Total investments and funds held for clients, Unrealized Gain (Loss)	(1,806)			(1,806)			264
Total investments and funds held for clients, fair value	92,345			92,345			88,272
U.S. Government Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	66,453	[1]		66,453	[1]		48,340
Total securities available for sale, Unrealized Gain (Loss)	(1,841)			(1,841)			156
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	3,562	[1]		3,562	[1]		820
Total securities available for sale, Unrealized Gain (Loss)	3			3			28
Corporate fixed income - financial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	2,999	[1]		2,999	[1]		5,010
Total securities available for sale, Unrealized Gain (Loss)	6			6			16
Corporate fixed income - industrial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	1,761	[1]		1,761	[1]		3,887
Total securities available for sale, Unrealized Gain (Loss)	14			14			49
Certificates of deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Amortized Cost	1,000	[1]		1,000	[1]		1,000
Total securities available for sale, Unrealized Gain (Loss)	12			12			15
Fair Value, Measurements, Recurring [Member]
Schedule of Available-for-sale Securities [Line Items]
Money Market Funds, Fair Value							15,084
Fair Value, Measurements, Recurring [Member] | U.S. Government Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	64,612			64,612			48,496
Fair Value, Measurements, Recurring [Member] | Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	3,565			3,565			848
Fair Value, Measurements, Recurring [Member] | Corporate fixed income - financial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	3,005			3,005			5,026
Fair Value, Measurements, Recurring [Member] | Corporate fixed income - industrial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	1,775			1,775			3,936
Fair Value, Measurements, Recurring [Member] | Certificates of deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	1,012			1,012			1,015
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | U.S. Government Agency [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	64,612			64,612			48,496
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	3,565			3,565			848
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate fixed income - financial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	3,005			3,005			5,026
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate fixed income - industrial [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	1,775			1,775			3,936
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Certificates of deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Total securities available for sale, Fair Value	$ 1,012			$ 1,012			$ 1,015

[1] (1) Amortized cost represents the original purchase price of the investments, plus or minus any amortized purchase premiums or accreted purchase discounts.