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v3.3.1.900

Long-Term Debt (Details) - USD ($) |  |  | 2 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 12, 2015 | Dec. 31, 2011 | Feb. 28, 2013 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Debt Instrument [Line Items] |  |  |  |  |  |
Placement fee, warrants issued (in shares) |  |  |  | 16,493 | 15,958 |
Amortization of debt discount |  |  |  | $ 0 | $ 0 | $ 1,328,000
5% Convertible Senior Secured Promissory Note |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Annual interest rate |  | 5.00% |  |  |  | 5.00%
Proceeds from issuance of debt |  | $ 5,000,000 |  |  |  |
Principal of notes convertible (in shares) |  | 5,000,000 |  |  |  |
Accrued but unpaid interest (in dollars per share) |  | $ 1.00 |  |  |  |
Placement fee |  | $ 32,800 |  |  |  |
Placement fee, warrants issued (in shares) |  | 42,400 |  |  |  |
Warrant exercise price (in dollars per share) |  | $ 1.09 |  |  |  |
Fair value of placement fee warrants |  | $ 15,000 |  |  |  |
Direct costs of sale of notes |  | 47,800 |  |  |  |
5% Convertible Senior Secured Promissory Note | Chairman and CEO |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Proceeds from issuance of debt |  | $ 500,000 |  |  |  |
Loan Agreement |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total amount of debt plus accrued interest |  |  | $ 5,272,000 |  |  |
Convertible secured promissory note to common stock (in shares) |  |  | 5,272,000 |  |  |
Amortization of debt discount |  |  |  |  |  | $ 1,328,000
Loan Agreement | Chief Executive Officer |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible secured promissory note to common stock (in shares) |  |  | 532,260 |  |  |
Credit Agreement | Revolving Credit Facility |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Direct costs of sale of notes | $ 500,000 |  |  |  |  |
Maximum borrowing capacity | 50,000,000 |  |  |  |  |
Uncommitted incremental facility | $ 35,000,000 |  |  |  |  |
Debt term | 3 years |  |  |  |  |
Credit Agreement | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 1.50% |  |  |  |  |
Credit Agreement | Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 2.25% |  |  |  |  |

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