15. Employee Compensation and Benefits (Details 2) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Options Outstanding Shares	1,647,333	1,711,167
Options Outstanding Shares Remaining Contractual Life (Years)	7 years 6 months
Options Exercisable Shares	837,994
Options Exercisable Price	$ 3.75
Range Of Exercise Price From 1.94 to 2.20 Member
Options Outstanding Shares	5,000
Options Outstanding Shares Remaining Contractual Life (Years)	1 year 4 months 24 days
Options Exercisable Shares	5,000
Options Exercisable Price	$ 2.20
Range of Exercise Price from 3.31 to 4.20 Member
Options Outstanding Shares	1,278,000
Options Outstanding Shares Remaining Contractual Life (Years)	7 years 6 months
Options Exercisable Shares	638,000
Options Exercisable Price	$ 3.71
Range of Exercise Price from 6.10 Member
Options Outstanding Shares	137,666
Options Outstanding Shares Remaining Contractual Life (Years)	7 years 10 months 24 days
Options Exercisable Shares	89,994
Options Exercisable Price	$ 6.10
Range of Exercise Price from 7.75 to 8.62 Member
Options Outstanding Shares	136,667
Options Outstanding Shares Remaining Contractual Life (Years)	8 years 6 months
Options Exercisable Shares	58,334
Options Exercisable Price	$ 8.13
Range of Exercise Price from 9.02 to 10.35 Member
Options Outstanding Shares	90,000
Options Outstanding Shares Remaining Contractual Life (Years)	8 years 3 months 18 days
Options Exercisable Shares	46,666
Options Exercisable Price	$ 9.82