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Stockholders' Equity - Warrants Activity (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Feb. 28, 2014
Shares |  |
Outstanding, ending balance | 132,000 |
Common Stock Warrant |  |
Shares |  |
Outstanding, beginning balance | 191,000 |
Issued | 0 |
Exercised | 0 |
Canceled | (59,288) |
Outstanding, ending balance | 132,000 |
Weighted Average Exercise Price |  |
Outstanding, beginning balance, weighted-average exercise price | $ 9.96 |
Issued, weighted-average exercise price | 0.00 |
Exercised, weighted-average exercise price | 0.00 |
Canceled, weighted average exercise price | 10.31 |
Outstanding, ending balance, weighted-average exercise price | $ 9.80 |
2014 Loan and Security Agreement | Term Loan |  |
Weighted Average Exercise Price |  |
Credit facility, remaining borrowing capacity |  | $ 10,000,000.0

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- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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 + Details
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