Debt	12 Months Ended
Dec. 31, 2016
Debt Disclosure [Abstract]
Debt	7. DEBT Revolving Line of Credit The Company has a revolving credit facility with Silicon Valley Bank that allows for maximum borrowings of $2,000,000. The borrowings are secured by certain collateralized accounts totaling $2,000,000. The facility bears interest at a rate of U.S. prime (3.75% at December 31, 2016). Interest is payable monthly and the principal is due upon maturity on October 5, 2017. At December 31, 2016, there were no amounts outstanding under this facility and unused availability under this facility was $2,000,000.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20,22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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