Investments (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Schedule of net carrying value (amortized cost) and estimated fair value of debt securities
Due in one year or less, Amortized Cost	$ 2,800
Due after one year through three years, Amortized Cost
Due after three years, Amortized Cost	882
Total investments, Amortized Cost	3,682
Due in one year or less, Estimated Fair Value	2,800
Due after three years, Estimated Fair Value
Due after three years, Estimated Fair Value	923
Total investments, Estimated Fair Value	$ 3,723

Amount of available-for-sale debt securities at cost, net of adjustments, which include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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Amount of available-for-sale debt securities at cost, net of adjustments, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings (less any cumulative-effect adjustments, as defined) and fair value hedge accounting adjustments.

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- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

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