Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Three months ended Three months ended June 30, 2016 June 30, 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated unrealized gains, net, on investments available for sale, beginning of period $ 186,253 $ 63,330 $ 122,923 $ 237,348 $ 80,701 $ 156,647 Other comprehensive income (loss) before reclassification 123,438 41,969 81,469 (137,587 ) (46,782 ) (90,805 ) Reclassification adjustment for realized investment (gains), net, included in realized (gains) on investments, net (914 ) (311 ) (603 ) (15,059 ) (5,120 ) (9,939 ) Effect on other comprehensive income (loss) 122,524 41,658 80,866 (152,646 ) (51,902 ) (100,744 ) Accumulated unrealized gains, net, on investments available for sale, end of period $ 308,777 $ 104,988 $ 203,789 $ 84,702 $ 28,799 $ 55,903 Accumulated unrealized losses, net, on interest rate swap, beginning of period $ (51,047 ) $ (17,357 ) $ (33,690 ) $ (25,837 ) $ (8,785 ) $ (17,052 ) Other comprehensive (loss) income before reclassification (13,478 ) (4,582 ) (8,896 ) 21,980 7,474 14,506 Effect on other comprehensive (loss) income (13,478 ) (4,582 ) (8,896 ) 21,980 7,474 14,506 Accumulated unrealized losses, net, on interest rate swap, end of period $ (64,525 ) $ (21,939 ) $ (42,586 ) $ (3,857 ) $ (1,311 ) $ (2,546 ) Accumulated other comprehensive income, beginning of period $ 135,206 $ 45,973 $ 89,233 $ 211,511 $ 71,916 $ 139,595 Change in unrealized gains (losses), net, on investments available for sale 122,524 41,658 80,866 (152,646 ) (51,902 ) (100,744 ) Change in unrealized (losses) gains, net, on interest rate swap (13,478 ) (4,582 ) (8,896 ) 21,980 7,474 14,506 Effect on other comprehensive income (loss) 109,046 37,076 71,970 (130,666 ) (44,428 ) (86,238 ) Accumulated other comprehensive income, end of period $ 244,252 $ 83,049 $ 161,203 $ 80,845 $ 27,488 $ 53,357 Six months ended Six months ended June 30, 2016 June 30, 2015 Before Tax Income Tax Net Before Tax Income Tax Net Accumulated unrealized (losses) gains, net, on investments available for sale, beginning of period $ (34,498 ) $ (11,726 ) $ (22,772 ) $ 155,814 $ 52,980 $ 102,834 Other comprehensive income (loss) before reclassification 291,950 99,263 192,687 (50,885 ) (17,304 ) (33,581 ) Reclassification adjustment for realized investment losses (gains), net, included in realized losses (gains) on investments, net 51,325 17,451 33,874 (20,227 ) (6,877 ) (13,350 ) Effect on other comprehensive income (loss) 343,275 116,714 226,561 (71,112 ) (24,181 ) (46,931 ) Accumulated unrealized gains, net, on investments available for sale, end of period $ 308,777 $ 104,988 $ 203,789 $ 84,702 $ 28,799 $ 55,903 Accumulated unrealized losses, net, on interest rate swap, beginning of period $ (18,016 ) $ (6,126 ) $ (11,890 ) $ (4,854 ) $ (1,651 ) $ (3,203 ) Other comprehensive (loss) gain before reclassification (46,509 ) (15,813 ) (30,696 ) 997 340 657 Effect on other comprehensive (loss) income (46,509 ) (15,813 ) (30,696 ) 997 340 657 Accumulated unrealized losses, net, on interest rate swap, end of period $ (64,525 ) $ (21,939 ) $ (42,586 ) $ (3,857 ) $ (1,311 ) $ (2,546 ) Accumulated other comprehensive (loss) income, beginning of period $ (52,514 ) $ (17,852 ) $ (34,662 ) $ 150,960 $ 51,329 $ 99,631 Change in unrealized gains (losses), net, on investments available for sale 343,275 116,714 226,561 (71,112 ) (24,181 ) (46,931 ) Change in unrealized (losses) gains, net, on interest rate swap (46,509 ) (15,813 ) (30,696 ) 997 340 657 Effect on other comprehensive income (loss) 296,766 100,901 195,865 (70,115 ) (23,841 ) (46,274 ) Accumulated other comprehensive income, end of period $ 244,252 $ 83,049 $ 161,203 $ 80,845 $ 27,488 $ 53,357 |