Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

+ References

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

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 43

-Section A

-Paragraph 4, 5

-Chapter 3

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+ Details

- Definition

This item represents investment income derived from investments in debt and equity securities consisting of interest income earned from investments in debt securities and on cash and cash equivalents, dividend income from investments in equity securities, and income or expense derived from the amortization of investment related discounts or premiums, respectively, net of related investment expenses. This item does not include realized or unrealized gains or losses on the sale or holding of investments in debt and equity securities required to be included in earnings for the period or for other than temporary losses related to investments in debt and equity securities which are included in realized losses in the period recognized, and does not include investment income from real or personal property, such as rental income.

+ References+ Details

Investment Securities: (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items]
Investment securities	$ 79,259	$ 60,395
Investment Maturity Date Range Start	Jan. 01, 2013
Investment Maturity Date Range End	Dec. 31, 2043
Federal tax-exempt debt securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	23,732	39,745
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	47,037	13,263
Sovereign Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	0	1,928
Certificates of deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities	8,490	5,459
Dividend Income [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Net	4	15	0
Interest Income [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Net	74	103	58
Other Interest Income [Member]
Schedule of Available-for-sale Securities [Line Items]
Investment Income, Net	$ 219	$ 358	$ 77