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Equity-Based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2018

Equity-Based Compensation Plan [Abstract]

Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Table Text Block]

	Year Ended December 31,
	2018					2017					2016
			Weighted					Weighted					Weighted
	Number		Average			Number		Average			Number		Average
	Of		Exercise			Of		Exercise			Of		Exercise
	Options		Price			Options		Price			Options		Price
Beginning of year	845,619		$	14.14		917,269		$	14.08		951,523		$	12.45
Options exercised	(101,268)			13.41		(71,150)			12.96		(24,752)			12.43
Options forfeited	(5,025)			17.05		(500)			15.26		(9,502)			16.65
End of year	739,326		$	14.28		845,619		$	14.14		917,269		$	14.08

		Outstanding								Exercisable
								Weighted
								Average
					Weighted			Contract Life					Weighted
		Number of			Average			Remaining		Number of			Average
Range of Exercise Prices		Options			Exercise Price			(Years)		Options			Exercise Price
$5.63 to $8.45			3,532			8.28		0.3			3,532			8.28
11.27 to 14.08			313,394			11.81		2.2			313,394			11.81
14.09 to 16.90			265,675			15.40		4.7			228,625			15.29
16.91 to 19.71			156,725			17.00		6.2			78,362			17.44
			739,326		$	14.28		3.9			623,913		$	13.77
Aggregate Intrinsic Value		$	1,767,596							$	1,754,258

Schedule Of Share based Compensation Restricted Stock And Restricted Stock Units Activity [Table Text Block]

	Year Ended December 31,
	2018					2017					2016
			Weighted					Weighted					Weighted
			Average					Average					Average
	Restricted		Grant Date			Restricted		Grant Date			Restricted		Grant Date
	Units		Fair Value			Units		Fair Value			Units		Fair Value
Beginning of year	105,800		$	14.19		59,800		$	16.64		138,400		$	16.17
Restricted units granted	176,250			12.12		83,000			13.31		-			-
Restricted units lapsed	(24,017)			17.12		(33,100)			16.10		(76,903)			16.04
Restricted units forfeited	(3,983)			12.48		(3,900)			16.79		(1,697)			17.02
End of year	254,050		$	12.50		105,800		$	14.19		59,800		$	16.64

X

- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

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