Intangible Assets (Q3) (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2017

Dec. 31, 2016

INTANGIBLE ASSETS [Abstract]

Other intangible assets, net of amortization

The following table summarizes intangible assets, net of amortization:

	September 30, 2017				December 31, 2016
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(In thousands)
Amortized intangible assets - core deposits	$	6,118	$	4,445	$	6,118	$	4,186

Intangible assets, net of amortization, at December 31 follows:

	2016				2015
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(In thousands)
Amortized intangible assets - core deposits	$	6,118	$	4,186	$	6,118	$	3,838

Estimated amortization of other intangible assets

Amortization of other intangibles has been estimated through 2022 in the following table.

	(In thousands)
Three months ending December 31, 2017	$	87
2018		346
2019		346
2020		346
2021		346
2022		202
Total	$	1,673

A summary of estimated core deposit intangible amortization at December 31, 2016, follows:

	(In thousands)
2017	$	346
2018		346
2019		346
2020		346
2021		346
2022 and thereafter		202
Total	$	1,932