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	1 Months Ended		3 Months Ended		6 Months Ended
	Apr. 30, 2020	Feb. 29, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income (loss) attributable to FedNat Holding Company shareholders			$ (21,479)	$ 7,110	$ (19,346)	$ 3,245
Weighted average number of common shares outstanding - basic			13,714	12,844	13,981	12,820
Net (loss) income per share - basic (in dollars per share)			$ (1.57)	$ 0.55	$ (1.38)	$ 0.25
Dilutive effect of stock compensation plans			0	39	0	56
Weighted average number of common shares outstanding - diluted			13,714	12,883	13,981	12,876
Net (loss) income per share - diluted (in dollars per share)			$ (1.57)	$ 0.55	$ (1.38)	$ 0.25
Dividends declared per share (in dollars per share)	$ 0.09	$ 0.09	$ 0.09	$ 0.08	$ 0.18	$ 0.16