Note 15 - Net Income Per Common Share (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended December 31,
	2019		2018		2017
Numerator:
Net income	$	178,582	$	164,760	$	235,171
Denominator:
Weighted average common shares outstanding - basic		5,678,990		5,684,375		5,680,073
Effect of dilutive equity-based awards (1)		58,866		41,588		66,964
Weighted average common shares outstanding - diluted		5,737,856		5,725,963		5,747,037
Net Income per Common Share:
Basic	$	31.45	$	28.98	$	41.40
Diluted	$	31.12	$	28.77	$	40.92