CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Investments [Abstract]
Debt securities, available-for-sale, at fair value (amortized cost of $512,645 and $433,664, respectively)	$ 526,265	$ 428,641
Debt securities, held-to-maturity, at amortized cost	4,337	5,126
Equity securities, at fair value	20,039	17,758
Total investments	550,641	451,525
Cash and cash equivalents	133,361	64,423
Prepaid reinsurance premiums	145,659	108,577
Premiums receivable, net of allowance of $159 and $77, respectively	41,422	29,791
Reinsurance recoverable, net	209,615	211,424
Deferred acquisition costs and value of business acquired, net	56,136	39,436
Income taxes, net	2,552	5,220
Goodwill	10,997	0
Other assets	28,633	14,975
Total assets	1,179,016	925,371
Liabilities [Abstract]
Loss and loss adjustment expense reserves	324,362	296,230
Unearned premiums	360,870	281,992
Reinsurance payable	102,467	63,599
Long-term debt, net of deferred financing costs of $1,478 and $596, respectively	98,522	44,404
Deferred revenue	6,856	4,585
Other liabilities	37,246	19,302
Total liabilities	930,323	710,112
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock, $0.01 par value: 1,000,000 shares authorized	0	0
Common stock, $0.01 par value: 25,000,000 shares authorized; 14,414,821 and 12,784,444 shares issued and outstanding, respectively	144	128
Additional paid-in capital	167,677	141,128
Accumulated other comprehensive income (loss)	10,281	(3,750)
Retained earnings	70,591	77,753
Total shareholders’ equity attributable to FedNat Holding Company shareholders	248,693	215,259
Total liabilities and shareholders' equity	$ 1,179,016	$ 925,371