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Fair Value Disclosure - Schedule of Fair Value, Cash Equivalents and Long-term Investment Measured on Recurring Basis (Details) (USD $)
In Thousands, unless otherwise specified
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Sep. 30, 2013
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Jun. 30, 2013
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Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Total assets, fair value |
$ 310 |
$ 310 |
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Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Total assets, fair value |
0 |
0 |
| Debt, fair value |
34,749 |
35,171 |
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Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Total assets, fair value |
2,637 |
2,637 |
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Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Total assets, fair value |
2,947 |
2,947 |
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Cash [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Cash and cash equivalents, fair value |
110,909 |
92,495 |
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Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Cash and cash equivalents, fair value |
310 |
310 |
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Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Cash and cash equivalents, fair value |
0 |
0 |
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Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Cash and cash equivalents, fair value |
0 |
0 |
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Money Market Funds [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Cash and cash equivalents, fair value |
310 |
310 |
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Auction Rate Securities [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Auction rate securities, fair value |
2,637 |
2,637 |
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Auction Rate Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Auction rate securities, fair value |
0 |
0 |
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Auction Rate Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Auction rate securities, fair value |
0 |
0 |
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Auction Rate Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Auction rate securities, fair value |
2,637 |
2,637 |
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Auction Rate Securities [Member] | Estimate of Fair Value Measurement [Member] | Fair Value, Measurements, Recurring [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Auction rate securities, fair value |
2,637 |
2,637 |
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Certificates of Deposit [Member]
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
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| Certificates of deposit, fair value |
$ 1,159 |
$ 1,139 |