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Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2012 | 15,438,961 |  |  |
Balance at Dec. 31, 2012 | $ 154 | $ 301,039 | $ (317,961) | $ (16,768)
Issuance of shares pursuant to stock awards (in shares) | 13,795 |  |  |
Issuance of stock to lenders (in shares) | 700,000 |  |  |
Issuance of stock to lenders | $ 7 | 2,428 |  | 2,435
Stock compensation expense |  | $ 512 |  | 512
Net loss |  |  | $ (22,677) | (22,677)
Balance (in shares) at Dec. 31, 2013 | 16,152,756 |  |  |
Balance as of December 31, 2013 at Dec. 31, 2013 | $ 161 | $ 303,979 | $ (340,638) | (36,498)
Issuance of shares pursuant to stock awards (in shares) | 29,327 |  |  |
Issuance of stock to lenders (in shares) | 1,435,713 |  |  |
Issuance of stock to lenders | $ 14 | 14,443 |  | 14,457
Stock compensation expense | $ 1 | $ 872 |  | 873
Net loss |  |  | $ (18,881) | (18,881)
Balance (in shares) at Dec. 31, 2014 | 17,681,274 |  |  |
Balance as of December 31, 2013 at Dec. 31, 2014 | $ 177 | $ 319,604 | $ (359,519) | (39,738)
Issuance of shares pursuant to warrant exercise (in shares) | 24,441 |  |  |
Stock Issued During Period, Shares, Conversion of Convertible Securities | 39,037 |  |  |
Issuance of stock pursuant to bond conversion | $ 1 | 310 |  | 311
Issuance of shares pursuant to stock awards (in shares) | 68,109 |  |  |
Stock compensation expense | $ 1 | $ 1,107 |  | 1,108
Net loss |  |  | $ (24,013) | (24,013)
Balance (in shares) at Dec. 31, 2015 | 17,876,016 |  |  |
Balance as of December 31, 2013 at Dec. 31, 2015 | $ 179 | $ 326,855 | $ (383,532) | $ (56,498)
Stock Issued During Period, Shares, Conversion of Convertible Securities | 126,633 |  |  | 126,633
Issuance of stock pursuant to bond conversion | $ 1 | 1,005 |  | $ 1,006
Convertible term loan conversion option |  | $ 5,139 |  | $ 5,139

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