Shareholders' Equity and Earnings Per Common Share (Q3) (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2017

Dec. 31, 2016

SHAREHOLDERS' EQUITY AND INCOME PER COMMON SHARE [Abstract]

Reconciliation of basic and diluted net income per share

A reconciliation of basic and diluted net income per common share follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
	(In thousands, except per share amounts)
Net income	$	6,859	$	6,373	$	18,764	$	16,911
Weighted average shares outstanding(1)		21,334		21,232		21,325		21,421
Effect of stock options		138		149		144		150
Stock units for deferred compensation plan for non-employee directors		121		116		120		115
Performance share units		59		52		57		42
Restricted stock units		—		—		—		46
Weighted average shares outstanding for calculation of diluted earnings per share		21,652		21,549		21,646		21,774
Net income per common share
Basic(1)	$	0.32	$	0.30	$	0.88	$	0.79
Diluted	$	0.32	$	0.30	$	0.87	$	0.78

(1) Basic net income per common share includes weighted average common shares outstanding during the period and participating share awards.

A reconciliation of basic and diluted net income per common share for the years ended December 31 follows:

	2016		2015		2014
	(In thousands, except per share amounts)
Net income	$	22,766	$	20,017	$	18,021
Weighted average shares outstanding(1)		21,378		22,716		22,927
Effect of stock options		151		119		124
Stock units for deferred compensation plan for non-employee directors		115		112		114
Performance share units		48		—		—
Restricted stock units		35		233		306
Weighted average shares outstanding for calculation of diluted earnings per share		21,727		23,180		23,471
Net income per common share
Basic(1)	$	1.06	$	0.88	$	0.79
Diluted	$	1.05	$	0.86	$	0.77

(1) Basic net income per common share includes weighted average common shares outstanding during the period and participating share awards.