QUARTERLY RESULTS OF OPERATIONS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Unaudited Quarterly Results of Operations [Abstract]
Net premiums earned	$ 53,721	$ 62,286	$ 49,227	$ 44,786	$ 40,950	$ 34,518	$ 51,433	$ 44,004	$ 210,020	$ 170,905	$ 104,381
Total revenue	63,568	72,599	58,790	54,936	48,824	43,150	59,003	49,715	249,893	200,692	121,737
Losses and loss adjustment expenses	28,843	28,412	23,149	23,949	20,560	15,126	24,522	20,828	104,353	81,036	56,410
Total costs and expenses	49,123	54,974	40,151	40,452	34,694	31,695	41,009	35,987	184,700	143,385	102,519
Net income attributable to Federated National Holding Company shareholders	$ 9,274	$ 10,593	$ 11,734	$ 9,284	$ 9,995	$ 7,227	$ 11,554	$ 8,423	$ 40,885	$ 37,199	$ 12,727
Net income per share - basic (in dollars per share)	$ 0.67	$ 0.77	$ 0.86	$ 0.68	$ 0.73	$ 0.57	$ 1.04	$ 0.77	$ 2.98	$ 3.08	$ 1.50