Loan Agreement (Details) - Mar. 20, 2015 - Loan Agreement - SVB - USD ($)	Total
Line of Credit Facility [Line Items]
Interest rate in event of debt default	5.00%
Initial commitment fee	$ 75,000
Annual commitment fee	$ 12,500
Minimum
Line of Credit Facility [Line Items]
Unused facility fee (percentage)	0.30%
Maximum
Line of Credit Facility [Line Items]
Unused facility fee (percentage)	0.50%
LIBOR \| Minimum
Line of Credit Facility [Line Items]
Variable rate	2.00%
LIBOR \| Maximum
Line of Credit Facility [Line Items]
Variable rate	2.75%
Prime Rate \| Minimum
Line of Credit Facility [Line Items]
Variable rate	0.00%
Prime Rate \| Maximum
Line of Credit Facility [Line Items]
Variable rate	0.50%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 30,000,000
Letters of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 15,000,000

Debt Instrument, Debt Default, Interest Rate

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- Definition

Line of Credit Facility, Annual Commitment Fee Amount

+ References

No definition available.

+ Details

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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