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Summary Of Significant Accounting And Reporting Policies (Schedule Of Amortized Cost, Unrealized Gains And Losses, And Market Value Of Investment Securities) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	$ 172,957,560	$ 182,077,222
Unrealized Gains	18,597,832	33,553,253
Unrealized Losses	(2,578,990)	(91,712)
Unrealized Market Value	188,976,402	215,538,763
Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	35,016,980	36,137,467
Unrealized Gains	7,090	9,254
Unrealized Losses	(40)	(9,961)
Unrealized Market Value	35,024,030	36,136,760
U.S. Treasury Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	25,025,600	50,095,921
Unrealized Gains	18,400	60,329
Unrealized Market Value	25,044,000	50,156,250
Other [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	91,003	154,586
Unrealized Market Value	91,003	154,586
Common Stocks [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	42,344,526	44,899,944
Unrealized Gains	12,274,640	18,819,518
Unrealized Losses	(1,064,863)	(81,751)
Unrealized Market Value	53,554,303	63,637,711
Mutual Funds - Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	68,986,676	42,106,776
Unrealized Gains	6,277,183	13,128,125
Unrealized Losses	(1,514,087)
Unrealized Market Value	73,749,772	55,234,901
Limited Partnership - Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost		7,844,022
Unrealized Gains		1,519,533
Unrealized Market Value		9,363,555
Certificate Of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	505,390	500,000
Unrealized Market Value	505,390	500,000
Other - Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized Cost	338,506	338,506
Unrealized Gains	20,194	16,494
Unrealized Market Value	$ 358,700	$ 355,000

X

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name FASB Staff Position (FSP)

-Number FAS115-1/124-1

-Paragraph 7

-Footnote 2

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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- Definition

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 22

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13, 19

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 2

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+ References

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Available-for-Sale Securities

-URI http://asc.fasb.org/extlink&oid=6505594



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-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 13

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6526789



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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 12

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 7

-Section 03

-Paragraph 1

-Subparagraph a, f, g



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