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Condensed Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands | Total | Common Stock Issued [Member] | Treasury Stock [Member] | Additional Paid in Capital [Member] | Accumulated Deficit [Member] | Accumulated Other Comprehensive loss [Member]
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2014 | $ 18,145 | $ 6 | $ (51) | $ 246,513 | $ (246,513) | $ 20
Balance (in shares) at Dec. 31, 2014 |  | 608,775 | (110) | 64,683 |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Compensation expense for issuance of stock options | 349 |  |  | $ 349 |  |
Compensation expense for issuance of restricted stock | 308 |  |  | 308 |  |
Compensation expense for issuance of restricted stock (in shares) |  | 35,991 |  |  |  |
Sale of common stock, net of expenses | 8,479 | $ 8 |  | 8,471 |  |
Sale of common stock, net of expenses (in shares) |  | 738,125 |  |  |  |
Warrants exercised | 176 |  |  | 176 |  |
Warrants Exercised (in shares) |  | 13,457 |  |  |  |
Fair value of warrants issued classified as liability | (4,247) |  |  | (4,247) |  |
Fair value of warrants exercised | 123 |  |  | 123 |  |
Net loss | (14,704) |  |  |  | (14,704) |
Total comprehensive loss | (28) |  |  |  |  | (28)
Balance at Dec. 31, 2015 | 8,601 | $ 14 | $ (51) | 269,863 | (261,217) | (8)
Balance (in shares) at Dec. 31, 2015 |  | 1,396,348 | (110) |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Compensation expense for issuance of stock options | 161 |  |  | 161 |  |
Compensation expense for issuance of restricted stock | 266 |  |  | 266 |  |
Compensation expense for issuance of restricted stock (in shares) |  | 2,180 |  |  |  |
Sale of common stock, net of expenses | 1,011 | $ 4 |  | 1,007 |  |
Sale of common stock, net of expenses (in shares) |  | 428,067 |  |  |  |
Issuance of common stock for payments made in shares on convertible note payable | 649 | $ 18 |  | 631 |  |
Issuance of common stock for payments made in shares on convertible note payable (in shares) |  | 1,805,299 |  |  |  |
Fair value of Beneficial conversion feature of convertible note | 4,435 |  |  | 4,435 |  |
Warrants exercised | 1,372 | $ 5 |  | 1,367 |  |
Warrants Exercised (in shares) |  | 499,633 |  |  |  |
Fair value of warrants issued classified as liability | (707) |  |  | (707) |  |
Fair value of warrants exercised | 726 |  |  | 726 |  |
Net loss | (17,971) |  |  |  | (17,971) |
Total comprehensive loss | (33) |  |  |  |  | (33)
Balance (Scenario, Previously Reported [Member]) at Dec. 31, 2016 |  | $ 41 |  | 277,749 |  |
Balance at Dec. 31, 2016 | (1,490) |  | $ (51) | 277,790 | (279,188) | (41)
Balance (in shares) (Scenario, Previously Reported [Member]) at Dec. 31, 2016 |  | 4,131,527 | (110) |  |  |
Balance (in shares) at Dec. 31, 2016 |  | 11,805 | (1) |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Compensation expense for issuance of stock options | 48 |  |  | 48 |  |
Compensation expense for issuance of restricted stock | 84 |  |  | 84 |  |
Compensation expense for issuance of restricted stock (in shares) |  | 261 |  |  |  |
Issuance of common stock for payments made in shares on convertible note payable | 25,866 | $ 14 |  | 25,852 |  |
Issuance of common stock for payments made in shares on convertible note payable (in shares) |  | 1,413,790 |  |  |  |
Series B preferred stock dividend | (526) |  |  |  | (526) |
Warrants exercised | 15 |  |  | 15 |  |
Warrants Exercised (in shares) |  | 297 |  |  |  |
Fair value of warrants exercised | 19 |  |  | 19 |  |
Net loss | (25,873) |  |  |  | (25,873) |
Total comprehensive loss | 7 |  |  |  |  | 7
Balance at Sep. 30, 2017 | $ (1,850) | $ 14 | $ (51) | $ 303,808 | $ (305,587) | $ (34)
Balance (in shares) at Sep. 30, 2017 |  | 1,426,153 | (1) |  |  |

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