Stock-Based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2017

Stock-Based Compensation Plan [Abstract]

Summary Of Stock Option Activities

				Weighted
				Average
		Weighted		Remaining		Aggregate
		Average		Contractual		Intrinsic
	Number of	Exercise		Term		Value
	Shares	Price		(in years)		(in thousands)
Options outstanding, December 31, 2014	1,420,749	$	15.67
Options granted	183,000	$	21.72
Options exercised	(414,494)	$	11.45
Options outstanding, December 31, 2015	1,189,255	$	18.08
Options granted	245,000	$	7.87
Options forfeited/cancelled	(6,000)	$	21.99
Options outstanding, December 31, 2016	1,428,255	$	16.31
Options granted	230,500	$	16.80
Options exercised	(799,195)	$	16.31
Options outstanding, December 31, 2017	859,560	$	16.44		7.2	$	10,210
Options exercisable at December 31, 2017	443,689	$	17.85		5.9	$	4,645
Expected to vest after December 31, 2017	415,871	$	14.94		8.7	$	5,565

Summary Of Fair Value Weighted Average Assumptions

	2017		2016		2015
Stock price	$	16.80	$	7.87	$	21.72
Exercise price	$	16.80	$	7.87	$	21.72
Expected term (years)		5.5 - 6.25		5.5 - 6.25		5.5 - 6.25
Expected volatility (%)		56.4 - 57.5		45.4 - 46.7		39.5 - 41.8
Risk-free interest rate (%)		1.77 - 2.14		1.30 - 1.40		1.85 - 2.00
Dividend yield (%)		-		-		-

Summary Of Restricted Stock Activity

	Number of	Weighted
	Shares of	Average
	Restricted	Grant Date
	Stock	Fair Value
Restricted stock outstanding, December 31, 2014	42,502	$	23.87
Restricted stock granted	21,000	$	21.15
Restricted stock vested	(15,477)	$	23.81
Restricted stock outstanding, December 31, 2015	48,025	$	22.70
Restricted stock granted	34,500	$	7.87
Restricted stock vested	(14,379)	$	23.61
Restricted stock forfeited	(2,344)	$	21.96
Restricted stock outstanding, December 31, 2016	65,802	$	14.75
Restricted stock granted	37,414	$	17.14
Restricted stock vested	(24,674)	$	17.83
Restricted stock outstanding, December 31, 2017	78,542	$	14.92