Marketable Securities and Fair Value Disclosures - Summary of Marketable securities (Details) $ in Thousands	Jun. 30, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 16,974
Fair Value	16,987
Short-term available-for-sale securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,976
Gross Unrealized Gains	6
Gross Unrealized Losses	(3)
Fair Value	11,979
Short-term available-for-sale securities \| Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,577
Gross Unrealized Gains	6
Gross Unrealized Losses	(3)
Fair Value	11,580
Short-term available-for-sale securities \| Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	399
Fair Value	399
Long-term available-for-sale securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,998
Gross Unrealized Gains	10
Fair Value	5,008
Long-term available-for-sale securities \| Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,998
Gross Unrealized Gains	10
Fair Value	$ 5,008

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.

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+ References

Reference 1: 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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-Publisher FASB
-Name Accounting Standards Codification
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Name Accounting Standards Codification
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