Loans - Average Recorded Investment and Interest Income on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	$ 165,222	$ 157,355	$ 171,443	$ 160,611
Interest Income Recognized	1,095	1,009	2,540	2,560
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	105,633	87,674	111,329	88,865
Interest Income Recognized	443	212	1,014	926
Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	46,588	54,973	46,102	56,334
Interest Income Recognized	547	579	1,266	1,218
Commercial real estate \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	46,234	52,729	45,515	54,104
Interest Income Recognized	547	563	1,266	1,179
Commercial real estate \| Construction
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	354	2,244	587	2,230
Interest Income Recognized	0	16	0	39
Residential mortgage
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	12,254	12,914	13,072	13,502
Interest Income Recognized	95	185	239	350
Consumer loans
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	747	1,794	940	1,910
Interest Income Recognized	10	33	21	66
Consumer loans \| Home equity
Accounts, Notes, Loans and Financing Receivable
Average Recorded Investment	747	1,794	940	1,910
Interest Income Recognized	$ 10	$ 33	$ 21	$ 66

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5258-111524

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Amount of interest income recognized on a cash-basis method of accounting that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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