Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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The net gain (loss) resulting from sales and other disposals of other real estate owned, increases (decreases) in the valuation allowance for foreclosed real estate, and write-downs of other real estate owned after acquisition or physical possession.

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Revenue from Contracts with Customers - (Non-interest income) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenue from Contracts with Customers
Loss (gain) on OREO sales, net	$ (78,000)	$ 112,000
ASU 2014-09
Revenue from Contracts with Customers
Non-interest income	17,835,000	8,696,000
Contract balances	0		$ 0
ASU 2014-09 \| In-scope of Topic 606
Revenue from Contracts with Customers
Non-interest income	8,537,000	6,595,000
Loss (gain) on OREO sales, net	78,000	(112,000)
Total Revenue	8,615,000	6,483,000
ASU 2014-09 \| In-scope of Topic 606 \| Service Charges and other fees
Revenue from Contracts with Customers
Non-interest income	5,175,000	3,791,000
ASU 2014-09 \| In-scope of Topic 606 \| Bank card fees
Revenue from Contracts with Customers
Non-interest income	3,362,000	2,804,000
ASU 2014-09 \| Out-of-scope of Topic 606
Revenue from Contracts with Customers
Non-interest income	$ 9,298,000	$ 2,101,000