Marketable Securities and Fair Value Disclosures - Summary of Marketable securities (Details) $ in Thousands	Mar. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 6,210
Fair Value	6,216
Short-term available-for-sale securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	910
Fair Value	910
Short-term available-for-sale securities \| Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	512
Fair Value	512
Short-term available-for-sale securities \| Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	398
Fair Value	398
Long-term available-for-sale securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	5,300
Gross Unrealized Gains	7
Gross Unrealized Losses	(1)
Fair Value	5,306
Long-term available-for-sale securities \| Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,850
Gross Unrealized Gains	7
Gross Unrealized Losses	(1)
Fair Value	4,856
Long-term available-for-sale securities \| U.S. government agency
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	450
Fair Value	$ 450

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

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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
-Topic 320
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-Section 45
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