Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net income	$ 15,439	$ 14,742	$ 12,610
Basic:
Weighted average shares outstanding	28,839	22,625	20,748
Earnings Per Share, Basic	$ 0.54	$ 0.65	$ 0.61
Diluted:
Effect of dilutive securities - options	257	290	132
Weighted Average Number of Shares Outstanding, Diluted, Total	29,096	22,915	20,880
Earnings Per Share, Diluted	$ 0.53	$ 0.64	$ 0.60
Green Bancorp, Inc.
Net income	$ 15,439	$ 14,743	$ 12,610