EARNINGS PER SHARE (Schedule of Calculation of Basic and Diluted Net Income Per Common Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share [Abstract]
Net income attributable to Federated National Holding Company shareholders		$ 7,463	$ 2,422
Weighted average number of common shares outstanding - basic		12,850	13,432
Net (loss) income per share - basic (in dollars per share)		$ 0.58	$ 0.18
Dilutive effect of stock compensation plans		95	127
Weighted average number of common shares outstanding - diluted		12,945	13,559
Net (loss) income per share - diluted (in dollars per share)		$ 0.58	$ 0.18
Dividends declared per share (in dollars per share)	$ 0.08	$ 0.08	$ 0.08