Note 16 - Segment Information - Information by Reportable Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Commercial Lines [Member] | Commercial Multi-peril [Member] | Operating Segments [Member]
Gross written premiums	$ 9,413,000	$ 8,695,000	$ 29,840,000	$ 23,806,000
Net written premiums	12,186,000	7,192,000	24,859,000	20,295,000
Net earned premiums	8,458,000	6,540,000	21,049,000	16,790,000
Other income	(269,000)	158,000	308,000	573,000
Segment revenue	8,189,000	6,698,000	21,357,000	17,363,000
Loss and loss adjustment expenses, net	4,581,000	3,169,000	11,788,000	11,322,000
Policy acquisition costs	2,069,000	1,670,000	4,333,000	4,355,000
Operating expenses	884,000	879,000	2,785,000	2,609,000
Segment expenses	7,534,000	5,718,000	18,906,000	18,286,000
Segment underwriting gain (loss)	655,000	980,000	2,451,000	(923,000)
Commercial Lines [Member] | Other Liability [Member] | Operating Segments [Member]
Gross written premiums	3,109,000	1,771,000	9,704,000	5,775,000
Net written premiums	3,541,000	1,471,000	8,441,000	5,142,000
Net earned premiums	2,107,000	1,312,000	5,269,000	3,767,000
Other income	651,000	25,000	737,000	103,000
Segment revenue	2,758,000	1,337,000	6,006,000	3,870,000
Loss and loss adjustment expenses, net	716,000	404,000	1,649,000	1,100,000
Policy acquisition costs	684,000	371,000	1,231,000	1,009,000
Operating expenses	253,000	174,000	696,000	582,000
Segment expenses	1,653,000	949,000	3,576,000	2,691,000
Segment underwriting gain (loss)	1,105,000	388,000	2,430,000	1,179,000
Commercial Lines [Member] | Auto [Member] | Operating Segments [Member]
Gross written premiums	3,226,000	2,010,000	8,510,000	6,257,000
Net written premiums	3,891,000	1,811,000	7,468,000	5,861,000
Net earned premiums	2,312,000	1,360,000	5,673,000	2,797,000
Other income	8,000	6,000	19,000	18,000
Segment revenue	2,320,000	1,366,000	5,692,000	2,815,000
Loss and loss adjustment expenses, net	1,535,000	880,000	3,978,000	1,845,000
Policy acquisition costs	549,000	350,000	1,251,000	726,000
Operating expenses	109,000	92,000	325,000	284,000
Segment expenses	2,193,000	1,322,000	5,554,000	2,855,000
Segment underwriting gain (loss)	127,000	44,000	138,000	(40,000)
Commercial Lines [Member] | Other [Member] | Operating Segments [Member]
Gross written premiums	907,000	789,000	2,669,000	1,875,000
Net written premiums	1,168,000	719,000	2,396,000	1,708,000
Net earned premiums	$ 744,000	$ 446,000	$ 1,788,000	$ 1,056,000
Other income
Segment revenue	$ 744,000	$ 446,000	$ 1,788,000	$ 1,056,000
Loss and loss adjustment expenses, net	211,000	300,000	422,000	731,000
Policy acquisition costs	146,000	87,000	288,000	194,000
Operating expenses	58,000	57,000	181,000	161,000
Segment expenses	415,000	444,000	891,000	1,086,000
Segment underwriting gain (loss)	329,000	2,000	897,000	(30,000)
Commercial Lines [Member] | Operating Segments [Member]
Gross written premiums	16,655,000	13,265,000	50,723,000	37,713,000
Net written premiums	20,786,000	11,193,000	43,164,000	33,006,000
Net earned premiums	13,621,000	9,658,000	33,779,000	24,410,000
Other income	390,000	189,000	1,064,000	694,000
Segment revenue	14,011,000	9,847,000	34,843,000	25,104,000
Loss and loss adjustment expenses, net	7,043,000	4,753,000	17,837,000	14,998,000
Policy acquisition costs	3,448,000	2,478,000	7,103,000	6,284,000
Operating expenses	1,304,000	1,202,000	3,987,000	3,636,000
Segment expenses	11,795,000	8,433,000	28,927,000	24,918,000
Segment underwriting gain (loss)	2,216,000	1,414,000	5,916,000	186,000
Personal Lines [Member] | Auto [Member] | Operating Segments [Member]
Gross written premiums	(21,000)	1,819,000	1,068,000	6,933,000
Net written premiums	(21,000)	1,819,000	1,068,000	6,933,000
Net earned premiums	315,000	2,344,000	2,597,000	9,795,000
Other income	5,000	123,000	85,000	436,000
Segment revenue	320,000	2,467,000	2,682,000	10,231,000
Loss and loss adjustment expenses, net	452,000	2,417,000	2,920,000	8,206,000
Policy acquisition costs	97,000	430,000	484,000	2,001,000
Operating expenses	807,000	694,000	1,010,000	1,427,000
Segment expenses	1,356,000	3,541,000	4,414,000	11,634,000
Segment underwriting gain (loss)	(1,036,000)	(1,074,000)	(1,732,000)	(1,403,000)
Personal Lines [Member] | Auto [Member]
Net earned premiums	315,000	2,300,000	2,600,000	9,800,000
Income (loss) before income taxes	(1,000,000)	(1,100,000)	(1,700,000)	(1,400,000)
Personal Lines [Member] | Low-value Dwelling [Member] | Operating Segments [Member]
Gross written premiums	2,071,000	2,198,000	5,119,000	6,243,000
Net written premiums	2,201,000	1,863,000	4,196,000	5,573,000
Net earned premiums	1,530,000	1,681,000	4,409,000	4,636,000
Other income	50,000	104,000	165,000	314,000
Segment revenue	1,580,000	1,785,000	4,574,000	4,950,000
Loss and loss adjustment expenses, net	1,179,000	2,590,000	3,305,000	6,070,000
Policy acquisition costs	444,000	528,000	1,222,000	1,407,000
Operating expenses	220,000	108,000	405,000	317,000
Segment expenses	1,843,000	3,226,000	4,932,000	7,794,000
Segment underwriting gain (loss)	(263,000)	(1,441,000)	(358,000)	(2,844,000)
Personal Lines [Member] | Wind-exposed Homeowners [Member] | Operating Segments [Member]
Gross written premiums	5,537,000	1,630,000	11,595,000	4,691,000
Net written premiums	5,633,000	1,342,000	9,779,000	4,106,000
Net earned premiums	2,417,000	$ 888,000	6,706,000	$ 2,362,000
Other income	60,000		101,000
Segment revenue	2,477,000	$ 888,000	6,807,000	$ 2,362,000
Loss and loss adjustment expenses, net	1,139,000	455,000	3,297,000	1,203,000
Policy acquisition costs	616,000	302,000	1,030,000	796,000
Operating expenses	155,000	80,000	390,000	238,000
Segment expenses	1,910,000	837,000	4,717,000	2,237,000
Segment underwriting gain (loss)	567,000	51,000	2,090,000	125,000
Personal Lines [Member] | Operating Segments [Member]
Gross written premiums	7,587,000	5,647,000	17,782,000	17,867,000
Net written premiums	7,813,000	5,024,000	15,043,000	16,612,000
Net earned premiums	4,262,000	4,913,000	13,712,000	16,793,000
Other income	115,000	227,000	351,000	750,000
Segment revenue	4,377,000	5,140,000	14,063,000	17,543,000
Loss and loss adjustment expenses, net	2,770,000	5,462,000	9,522,000	15,479,000
Policy acquisition costs	1,157,000	1,260,000	2,736,000	4,204,000
Operating expenses	1,182,000	882,000	1,805,000	1,982,000
Segment expenses	5,109,000	7,604,000	$ 14,063,000	21,665,000
Segment underwriting gain (loss)	$ (732,000)	$ (2,464,000)		$ (4,122,000)
Corporate and Other [Member] | Operating Segments [Member]
Gross written premiums
Net written premiums
Net earned premiums
Other income	$ 18,000	$ (29,000)	$ 77,000	$ (20,000)
Segment revenue	$ 18,000	$ (29,000)	$ 77,000	$ (20,000)
Loss and loss adjustment expenses, net
Policy acquisition costs
Operating expenses	$ 839,000	$ 1,349,000	$ 4,844,000	$ 3,922,000
Segment expenses	839,000	1,349,000	4,844,000	3,922,000
Segment underwriting gain (loss)	(821,000)	(1,378,000)	(4,767,000)	(3,942,000)
Corporate and Other [Member]
Investment income	505,000	321,000	1,460,000	823,000
Net realized investment gains	6,000	94,000	238,000	266,000
Deconsolidation of affiliate	104,000		104,000
Interest expense	(181,000)	(108,000)	(664,000)	(360,000)
Income (loss) before income taxes	(387,000)	(1,071,000)	(3,629,000)	(3,213,000)
Operating Segments [Member]
Gross written premiums	24,242,000	18,912,000	68,505,000	55,580,000
Net written premiums	28,599,000	16,217,000	58,207,000	49,618,000
Net earned premiums	17,883,000	14,571,000	47,491,000	41,203,000
Other income	523,000	387,000	1,492,000	1,424,000
Segment revenue	18,406,000	14,958,000	48,983,000	42,627,000
Loss and loss adjustment expenses, net	9,813,000	10,215,000	27,359,000	30,477,000
Policy acquisition costs	4,605,000	3,738,000	9,839,000	10,488,000
Operating expenses	3,325,000	3,433,000	10,636,000	9,540,000
Segment expenses	17,743,000	17,386,000	47,834,000	50,505,000
Segment underwriting gain (loss)	663,000	(2,428,000)	1,149,000	(7,878,000)
Gross written premiums	23,042,000	17,248,000	66,203,000	47,868,000
Net written premiums	28,599,000	16,217,000	58,207,000	49,618,000
Net earned premiums	17,883,000	14,571,000	47,491,000	41,203,000
Other income	523,000	387,000	1,492,000	1,424,000
Segment revenue	19,021,000	15,373,000	50,785,000	43,716,000
Loss and loss adjustment expenses, net	9,813,000	10,215,000	27,359,000	30,477,000
Policy acquisition costs	4,605,000	3,738,000	9,839,000	10,488,000
Operating expenses	3,325,000	3,433,000	10,636,000	9,540,000
Segment expenses	17,924,000	17,494,000	48,498,000	50,865,000
Investment income	505,000	321,000	1,460,000	823,000
Net realized investment gains	6,000	94,000	238,000	266,000
Deconsolidation of affiliate	104,000		104,000
Interest expense	(181,000)	(108,000)	(664,000)	(360,000)
Income (loss) before income taxes	$ 1,097,000	$ (2,121,000)	$ 2,287,000	$ (7,149,000)