Segment Information (Schedule of Segment Reporting, by Segment) (Details) - USD ($)
$ 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
Revenues                      
Revenues $ 90,071 $ 93,684 $ 97,197 $ 91,450 $ 88,004 $ 81,417 $ 80,836 $ 87,109 $ 372,402 $ 337,366 $ 389,428
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 3,516 3,224 4,300
Interest Expense                      
Interest Expense                 3,906 4,576 4,599
Tax Expense (Benefit)                      
Income tax expense (benefit) $ 1,641 $ 3,137 $ 2,899 $ 2,346 $ 1,833 $ 1,265 $ 391 $ 1,864 10,023 5,353 2,835
Pre-tax income (loss), net of non-controlling interest:                      
Consolidated pre-tax income (loss), net of non-controlling interest                 31,886 18,782 11,080
Standard Commercial Segment [Member]                      
Revenues                      
Revenues                 76,864 81,464 83,306
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 136 183 201
Tax Expense (Benefit)                      
Income tax expense (benefit)                 1,436 622 312
Pre-tax income (loss), net of non-controlling interest:                      
Consolidated pre-tax income (loss), net of non-controlling interest                 6,687 4,595 1,980
Specialty Commercial Segment [Member]                      
Revenues                      
Revenues                 249,910 241,920 229,734
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 2,537 2,503 2,896
Tax Expense (Benefit)                      
Income tax expense (benefit)                 11,609 9,690 3,613
Pre-tax income (loss), net of non-controlling interest:                      
Consolidated pre-tax income (loss), net of non-controlling interest                 40,277 34,237 19,527
Personal Segment [Member]                      
Revenues                      
Revenues                 45,538 20,404 71,081
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 779 515 1,111
Tax Expense (Benefit)                      
Income tax expense (benefit)                 (1,345) (574) (398)
Pre-tax income (loss), net of non-controlling interest:                      
Consolidated pre-tax income (loss), net of non-controlling interest                 (885) 1,226 (3,416)
Corporate [Member]                      
Revenues                      
Revenues                 90 (6,422) 5,307
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 64 23 92
Interest Expense                      
Interest Expense                 3,906 4,576 4,599
Tax Expense (Benefit)                      
Income tax expense (benefit)                 (1,677) (4,385) (692)
Pre-tax income (loss), net of non-controlling interest:                      
Consolidated pre-tax income (loss), net of non-controlling interest                 (14,193) (21,276) (7,011)
Parent Company [Member]                      
Revenues                      
Revenues                 18,173 17,747 8,328
Depreciation and Amortization Expense                      
Depreciation and Amortization Expense                 65 68 92
Interest Expense                      
Interest Expense                 3,906 4,576 4,599
Tax Expense (Benefit)                      
Income tax expense (benefit)                 $ (1,273) $ (1,623) $ (1,227)