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								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income attributable to Federated National Holding Company shareholders	$ (12,116)	$ 1,394	$ 991	$ 9,535	$ 9,274	$ 10,593	$ 11,734	$ 9,284	$ (196)	$ 40,885	$ 37,199
Weighted average number of common shares outstanding - basic (in shares)									13,758	13,729	12,082
Net income per share - basic (in dollars per share)	$ (0.89)	$ 0.10	$ 0.07	$ 0.69	$ 0.67	$ 0.77	$ 0.86	$ 0.68	$ (0.01)	$ 2.98	$ 3.08
Dilutive effect of stock compensation plans (in shares)										268	356
Weighted average number of common shares outstanding - diluted (in shares)									13,758	13,997	12,438
Net income per share - diluted (in dollars per share)									$ (0.01)	$ 2.92	$ 2.99
Dividends per share									$ 0.27	$ 0.18	$ 0.13
Parent Company [Member]
Net income attributable to Federated National Holding Company shareholders									$ (196)	$ 40,885	$ 37,199