Investments (Details) (USD $) | 3 Months Ended | 12 Months Ended |
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 |
Investments [Abstract] | ' | ' | ' |
Increase in total investments | $24,800,000 | ' | ' |
Percentage increase in investments (in hundredths) | 11.20% | ' | ' |
Increase in gross premiums written | 34,400,000 | ' | ' |
Percentage increase in gross premiums written (in hundredths) | 86.60% | ' | ' |
Homeowners' Gross Premiums Written | 74,000,000 | 39,600,000 | ' |
Increase in homeowners gross written transferred to investment accounts | 19,000,000 | ' | ' |
Ratio of available-for-sale securities to total investments (in hundredths) | 97.00% | ' | 97.00% |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Debt maturities, held to maturity, at amortized cost | 7,323,000 | ' | 7,214,000 |
Bond portfolio reclassified between available-for-sale and held-to-maturity | 0 | 0 | ' |
Debt securities, at market [Abstract] | ' | ' | ' |
Debt securities, at market | 200,339,000 | ' | 174,912,000 |
Percent of debt securities at market to total investments (in hundredths) | 81.60% | ' | 79.26% |
Debt securities, at amortized cost [Abstract] | ' | ' | ' |
Debt securities, at amortized cost | 7,323,000 | ' | 7,214,000 |
Percent of debt securities at amortized cost to total investments (in hundredths) | 2.98% | ' | 3.27% |
Total debt securities | 207,662,000 | ' | 182,126,000 |
Percent of debt securities to total investments (in hundredths) | 84.58% | ' | 82.53% |
Equity securities, at market | 37,857,000 | ' | 38,584,000 |
Percentage of equity securities to total investments (in hundredths) | 15.42% | ' | 17.47% |
Total investments | 245,519,000 | ' | 220,710,000 |
Total investments (in hundredths) | 100.00% | ' | 100.00% |
Realized gains (losses) [Abstract] | ' | ' | ' |
Total realized gains | 1,745,000 | 1,322,000 | ' |
Fair Value at Sale of securities with realized gains | 14,483,000 | 23,680,000 | ' |
Total realized losses | -414,000 | -509,000 | ' |
Fair Value at Sale of securities with realized losses | 5,037,000 | 17,099,000 | ' |
Net realized gains (losses) on investments | 1,331,000 | 813,000 | ' |
Fair Value of Investments at Sale | 19,520,000 | 40,779,000 | ' |
Debt Securities - Available-For-Sale [Abstract] | ' | ' | ' |
Debt Securities - Available-For-Sale, Amortized Cost | 198,594,000 | ' | 174,511,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Gains | 2,363,000 | ' | 1,727,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Losses | 618,000 | ' | 1,326,000 |
Debt Securities - Available-For-Sale, Estimated Fair Value | 200,339,000 | ' | 174,912,000 |
Debt Securities - Held-To-Maturity [Abstract] | ' | ' | ' |
Debt Securities - Held-To-Maturity, Amortized Cost | 7,323,000 | ' | 7,214,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Gains | 65,000 | ' | 54,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Losses | 262,000 | ' | 344,000 |
Debt Securities - Held-To-Maturity, Estimated Fair Value | 7,126,000 | ' | 6,924,000 |
Equity securities - common stocks, Amortized Cost | 29,160,000 | ' | 29,423,000 |
Equity securities - common stocks, Gross Unrealized Gains | 8,868,000 | ' | 9,436,000 |
Equity securities - common stocks, Gross Unrealized Losses | 171,000 | ' | 275,000 |
Equity securities - common stocks, Estimated Fair Value | 37,857,000 | ' | 38,584,000 |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 789,000 | ' | 1,601,000 |
Debt/Equity securities, Less than 12 months | 771,000 | ' | 1,460,000 |
Debt/Equity securities, 12 months or longer | 18,000 | ' | 141,000 |
Amortized Cost [Abstract] | ' | ' | ' |
Due in one year or less, Amortized Cost | 10,785,000 | ' | 5,161,000 |
Due after one through five years, Amortized Cost | 125,918,000 | ' | 113,027,000 |
Due after five through ten years, Amortized Cost | 68,323,000 | ' | 62,656,000 |
Due after ten years, Amortized Cost | 891,000 | ' | 881,000 |
Total Amortized Cost | 205,917,000 | ' | 181,725,000 |
Estimated Fair Value [Abstract] | ' | ' | ' |
Due in one year or less, Estimated Fair Value | 10,819,000 | ' | 5,181,000 |
Due after one through five years, Estimated Fair Value | 126,961,000 | ' | 113,561,000 |
Due after five through ten years, Estimated Fair Value | 68,781,000 | ' | 62,220,000 |
Due after ten years, Estimated Fair Value | 904,000 | ' | 874,000 |
Total Estimated Fair Value | 207,465,000 | ' | 181,836,000 |
Investment income [Abstract] | ' | ' | ' |
Interest on debt securities | 895,000 | 714,000 | ' |
Dividends on equity securities | 111,000 | 80,000 | ' |
Interest on cash and cash equivalents | 1,000 | 0 | ' |
Total investment income | 1,007,000 | 794,000 | ' |
Net realized gains | 1,331,000 | 813,000 | ' |
Proceeds from sales and maturity of marketable securities | 20,900,000 | 44,200,000 | ' |
Net realized and unrealized investment gains (losses) [Abstract] | ' | ' | ' |
Net realized gains | 1,331,000 | 813,000 | ' |
Net unrealized gains | 10,442,000 | 7,706,000 | ' |
Diverse Industries Debt Securities [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Percentage of debt securities to total debt portfolio (in hundredths) | 82.00% | ' | 83.00% |
United States Government Bonds [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Percentage of debt securities to total debt portfolio (in hundredths) | 18.00% | ' | 17.00% |
Diverse Industries Equity Securities [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Percentage of equity holdings to total equity portfolio (in hundredths) | 88.00% | ' | 91.00% |
Mutual Funds [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Percentage of equity holdings to total equity portfolio (in hundredths) | 12.00% | ' | 9.00% |
United States Government Obligations and Authorities [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Debt maturities, held to maturity, at amortized cost | 4,187,000 | ' | 4,630,000 |
Debt securities, at market [Abstract] | ' | ' | ' |
Debt securities, at market | 33,655,000 | ' | 27,209,000 |
Percent of debt securities at market to total investments (in hundredths) | 13.71% | ' | 12.33% |
Debt securities, at amortized cost [Abstract] | ' | ' | ' |
Debt securities, at amortized cost | 4,187,000 | ' | 4,630,000 |
Percent of debt securities at amortized cost to total investments (in hundredths) | 1.71% | ' | 2.10% |
Debt Securities - Available-For-Sale [Abstract] | ' | ' | ' |
Debt Securities - Available-For-Sale, Amortized Cost | 33,631,000 | ' | 27,422,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Gains | 237,000 | ' | 186,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Losses | 213,000 | ' | 399,000 |
Debt Securities - Available-For-Sale, Estimated Fair Value | 33,655,000 | ' | 27,209,000 |
Debt Securities - Held-To-Maturity [Abstract] | ' | ' | ' |
Debt Securities - Held-To-Maturity, Amortized Cost | 4,187,000 | ' | 4,630,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Gains | 33,000 | ' | 32,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Losses | 255,000 | ' | 326,000 |
Debt Securities - Held-To-Maturity, Estimated Fair Value | 3,965,000 | ' | 4,336,000 |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 213,000 | ' | 399,000 |
Debt/Equity securities, Less than 12 months | 207,000 | ' | 391,000 |
Debt/Equity securities, 12 months or longer | 6,000 | ' | 8,000 |
Obligations of States and Political Subdivisions [Member] | ' | ' | ' |
Debt securities, at market [Abstract] | ' | ' | ' |
Debt securities, at market | 58,149,000 | ' | 52,064,000 |
Percent of debt securities at market to total investments (in hundredths) | 23.68% | ' | 23.59% |
Debt Securities - Available-For-Sale [Abstract] | ' | ' | ' |
Debt Securities - Available-For-Sale, Amortized Cost | 57,742,000 | ' | 51,883,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Gains | 471,000 | ' | 303,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Losses | 64,000 | ' | 122,000 |
Debt Securities - Available-For-Sale, Estimated Fair Value | 58,149,000 | ' | 52,064,000 |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 64,000 | ' | 122,000 |
Debt/Equity securities, Less than 12 months | 64,000 | ' | 122,000 |
Debt/Equity securities, 12 months or longer | 0 | ' | 0 |
Corporate [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Debt maturities, held to maturity, at amortized cost | 2,908,000 | ' | 2,475,000 |
Debt securities, at market [Abstract] | ' | ' | ' |
Debt securities, at market | 100,086,000 | ' | 91,941,000 |
Percent of debt securities at market to total investments (in hundredths) | 40.77% | ' | 41.66% |
Debt securities, at amortized cost [Abstract] | ' | ' | ' |
Debt securities, at amortized cost | 2,908,000 | ' | 2,475,000 |
Percent of debt securities at amortized cost to total investments (in hundredths) | 1.18% | ' | 1.12% |
Debt Securities - Available-For-Sale [Abstract] | ' | ' | ' |
Debt Securities - Available-For-Sale, Amortized Cost | 98,794,000 | ' | 91,475,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Gains | 1,615,000 | ' | 1,233,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Losses | 323,000 | ' | 767,000 |
Debt Securities - Available-For-Sale, Estimated Fair Value | 100,086,000 | ' | 91,941,000 |
Debt Securities - Held-To-Maturity [Abstract] | ' | ' | ' |
Debt Securities - Held-To-Maturity, Amortized Cost | 2,908,000 | ' | 2,475,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Gains | 32,000 | ' | 22,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Losses | 6,000 | ' | 17,000 |
Debt Securities - Held-To-Maturity, Estimated Fair Value | 2,934,000 | ' | 2,480,000 |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 323,000 | ' | 767,000 |
Debt/Equity securities, Less than 12 months | 316,000 | ' | 761,000 |
Debt/Equity securities, 12 months or longer | 7,000 | ' | 6,000 |
Debt Securities [Member] | ' | ' | ' |
Realized gains (losses) [Abstract] | ' | ' | ' |
Total realized gains | 135,000 | 1,133,000 | ' |
Fair Value at Sale of securities with realized gains | 9,668,000 | 22,601,000 | ' |
Total realized losses | -70,000 | -409,000 | ' |
Fair Value at Sale of securities with realized losses | 3,699,000 | 16,476,000 | ' |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 618,000 | ' | 1,326,000 |
Debt/Equity securities, Less than 12 months | 605,000 | ' | 1,312,000 |
Debt/Equity securities, 12 months or longer | 13,000 | ' | 14,000 |
Investment income [Abstract] | ' | ' | ' |
Net realized gains | 65,000 | 724,000 | ' |
Net realized and unrealized investment gains (losses) [Abstract] | ' | ' | ' |
Net realized gains | 65,000 | 724,000 | ' |
Net unrealized gains | 1,745,000 | 3,275,000 | ' |
Equity Securities [Member] | ' | ' | ' |
Realized gains (losses) [Abstract] | ' | ' | ' |
Total realized gains | 1,610,000 | 189,000 | ' |
Fair Value at Sale of securities with realized gains | 4,815,000 | 1,079,000 | ' |
Total realized losses | -344,000 | -100,000 | ' |
Fair Value at Sale of securities with realized losses | 1,338,000 | 623,000 | ' |
Investment income [Abstract] | ' | ' | ' |
Net realized gains | 1,266,000 | 89,000 | ' |
Net realized and unrealized investment gains (losses) [Abstract] | ' | ' | ' |
Net realized gains | 1,266,000 | 89,000 | ' |
Net unrealized gains | 8,697,000 | 4,431,000 | ' |
International [Member] | ' | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' | ' |
Debt maturities, held to maturity, at amortized cost | 228,000 | ' | 109,000 |
Debt securities, at market [Abstract] | ' | ' | ' |
Debt securities, at market | 8,449,000 | ' | 3,698,000 |
Percent of debt securities at market to total investments (in hundredths) | 3.44% | ' | 1.68% |
Debt securities, at amortized cost [Abstract] | ' | ' | ' |
Debt securities, at amortized cost | 228,000 | ' | 109,000 |
Percent of debt securities at amortized cost to total investments (in hundredths) | 0.09% | ' | 0.05% |
Debt Securities - Available-For-Sale [Abstract] | ' | ' | ' |
Debt Securities - Available-For-Sale, Amortized Cost | 8,427,000 | ' | 3,731,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Gains | 40,000 | ' | 5,000 |
Debt Securities - Available-For-Sale, Gross Unrealized Losses | 18,000 | ' | 38,000 |
Debt Securities - Available-For-Sale, Estimated Fair Value | 8,449,000 | ' | 3,698,000 |
Debt Securities - Held-To-Maturity [Abstract] | ' | ' | ' |
Debt Securities - Held-To-Maturity, Amortized Cost | 228,000 | ' | 109,000 |
Debt Securities - Held-To-Maturity, Gross Unrealized Gains | 0 | ' | 0 |
Debt Securities - Held-To-Maturity, Gross Unrealized Losses | 1,000 | ' | 1,000 |
Debt Securities - Held-To-Maturity, Estimated Fair Value | 227,000 | ' | 108,000 |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 18,000 | ' | 38,000 |
Debt/Equity securities, Less than 12 months | 18,000 | ' | 38,000 |
Debt/Equity securities, 12 months or longer | 0 | ' | 0 |
Common Stock [Member] | ' | ' | ' |
Continuous unrealized loss position [Abstract] | ' | ' | ' |
Debt/Equity securities, Unrealized (Losses) | 171,000 | ' | 275,000 |
Debt/Equity securities, Less than 12 months | 166,000 | ' | 148,000 |
Debt/Equity securities, 12 months or longer | 5,000 | ' | 127,000 |
United States Treasury Notes [Member] | Federated National [Member] | ' | ' | ' |
Estimated Fair Value [Abstract] | ' | ' | ' |
Due after one through five years, Estimated Fair Value | 62,239 | ' | 62,490 |
Due after five through ten years, Estimated Fair Value | $2,191,923 | ' | $2,193,814 |