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Commitments and Contingencies SBA Recourse Reserve Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Beginning balance			$ 2,849	$ 1,750
SBA Recourse Provision	$ 314	$ 1,315	118	2,095
SBA Loan Charge Offs, Net			(238)	(1,141)
Ending balance	$ 2,729	$ 2,704	$ 2,729	$ 2,704