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Accumulated Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 2017
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule Of Changes In Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax | The following tables provide changes in the balances of each component of accumulated other comprehensive income, net of tax, for the periods ended September 30, 2017 and 2016:
Three Months Ended September 30, 2017 | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at July 1 | $ | 13,774,631 |  |  | $ | (106,356 | ) |  | $ | 13,668,275 |
Other comprehensive income before reclassifications | 1,235,517 |  |  | — |  |  | 1,235,517 |
Amounts reclassified from accumulated other comprehensive income | (529,519 | ) |  | 1,421 |  |  | (528,098 | )
Net current-period other comprehensive income | 705,998 |  |  | 1,421 |  |  | 707,419 |
Ending balance | $ | 14,480,629 |  |  | $ | (104,935 | ) |  | $ | 14,375,694 |
Three Months Ended September 30, 2016 | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at July 1 | $ | 14,331,320 |  |  | $ | (111,776 | ) |  | $ | 14,219,544 |
Other comprehensive loss before reclassifications | (489,001 | ) |  | — |  |  | (489,001 | )
Amounts reclassified from accumulated other comprehensive income | (282,461 | ) |  | 1,476 |  |  | (280,985 | )
Net current-period other comprehensive (loss) income | (771,462 | ) |  | 1,476 |  |  | (769,986 | )
Ending balance | $ | 13,559,858 |  |  | $ | (110,300 | ) |  | $ | 13,449,558 |
Nine Months Ended September 30, 2017 | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at January 1 | $ | 11,870,647 |  |  | $ | (109,200 | ) |  | $ | 11,761,447 |
Other comprehensive income before reclassifications | 3,252,816 |  |  | — |  |  | 3,252,816 |
Amounts reclassified from accumulated other comprehensive income | (642,834 | ) |  | 4,265 |  |  | (638,569 | )
Net current-period other comprehensive income | 2,609,982 |  |  | 4,265 |  |  | 2,614,247 |
Ending balance | $ | 14,480,629 |  |  | $ | (104,935 | ) |  | $ | 14,375,694 |
Nine Months Ended September 30, 2016 | Unrealized Gains and Losses On Available-for-Sale Securities |  | Postretirement Benefits Plans |  | Total
Beginning balance at January 1 | $ | 11,597,741 |  |  | $ | (114,726 | ) |  | $ | 11,483,015 |
Other comprehensive income before reclassifications | 2,325,045 |  |  | — |  |  | 2,325,045 |
Amounts reclassified from accumulated other comprehensive income | (362,928 | ) |  | 4,426 |  |  | (358,502 | )
Net current-period other comprehensive income | 1,962,117 |  |  | 4,426 |  |  | 1,966,543 |
Ending balance | $ | 13,559,858 |  |  | $ | (110,300 | ) |  | $ | 13,449,558 |
Schedule Of Reclassification Out Of Accumulated Other Comprehensive Income | The following tables provide significant amounts reclassified out of each component of accumulated other comprehensive income for the periods ended September 30, 2017 and 2016:
Three Months Ended September 30, 2017 |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 803,938 |  |  |
Other-than-temporary impairments | — |  |  |
Total | $ | 803,938 |  |  | Net realized gain on investments
Tax | (274,419 | ) |  | Provision for Income Taxes
Net of Tax | $ | 529,519 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (2,153 | ) |  |
Total | $ | (2,153 | ) |  | (a)
Tax | 732 |  |  | Provision for Income Taxes
Net of Tax | $ | (1,421 | ) |  |
Reclassifications for the period | $ | 528,098 |  |  |
Three Months Ended September 30, 2016 |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 545,925 |  |  |
Other-than-temporary impairments | (118,703 | ) |  |
Total | $ | 427,222 |  |  | Net realized gain on investments
Tax | (144,761 | ) |  | Provision for Income Taxes
Net of Tax | $ | 282,461 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (2,235 | ) |  |
Total | $ | (2,235 | ) |  | (a)
Tax | 759 |  |  | Provision for Income Taxes
Net of Tax | $ | (1,476 | ) |  |
Reclassifications for the period | $ | 280,985 |  |  |
Nine Months Ended September 30, 2017 |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 976,888 |  |  |
Other-than-temporary impairments | — |  |  |
Total | $ | 976,888 |  |  | Net realized gain on investments
Tax | (334,054 | ) |  | Provision for Income Taxes
Net of Tax | $ | 642,834 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (6,459 | ) |  |
Total | $ | (6,459 | ) |  | (a)
Tax | 2,194 |  |  | Provision for Income Taxes
Net of Tax | $ | (4,265 | ) |  |
Reclassifications for the period | $ | 638,569 |  |  |
Nine Months Ended September 30, 2016 |  |  |
Details about Accumulated Other Comprehensive Income Components | Amount Reclassified from Accumulated Other Comprehensive Income |  | Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities: |  |  |
Net realized gain on investments | $ | 785,517 |  |  |
Other-than-temporary impairments | (233,941 | ) |  |
Total | $ | 551,576 |  |  | Net realized gain on investments
Tax | (188,648 | ) |  | Provision for Income Taxes
Net of Tax | $ | 362,928 |  |  |
Amortization related to postretirement benefit plans: |  |  |  |
Prior year service cost | $ | — |  |  |
Unrecognized loss | (6,705 | ) |  |
Total | $ | (6,705 | ) |  | (a)
Tax | 2,279 |  |  | Provision for Income Taxes
Net of Tax | $ | (4,426 | ) |  |
Reclassifications for the period | $ | 358,502 |  |  |
(a) | These accumulated other comprehensive income components are not reclassified to net income in their entirety in the same reporting period. The amounts are presented within salaries, employee benefits and payroll taxes on the Consolidated Statements of Income as amortized. Amortization and accretion related to postretirement benefit plans is included in the computation of net periodic pension costs, as discussed in Note 5.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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