Consolidated Statements Changes in Stockholders' Equity - USD ($) $ in Thousands |
Total |
Common Stock [Member] |
Common Stock [Member]
Series B Preferred Stock [Member]
|
Convertible Preferred Stock [Member]
Series B Preferred Stock [Member]
|
Convertible Preferred Stock [Member]
Series G Preferred Stock [Member]
|
Convertible Preferred Stock [Member]
Series H-1 Preferred Stock [Member]
|
Convertible Preferred Stock [Member]
Series I-1 Preferred Stock [Member]
|
Convertible Preferred Stock [Member]
Series I-2 Preferred Stock [Member]
|
Additional Paid-in Capital [Member] |
Accumulated Deficit [Member] |
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Beginning balance at Dec. 31, 2014 | $ 321 | $ 2 | $ 5 | $ 95,063 | $ (94,749) | |||||||||
Beginning balance, shares at Dec. 31, 2014 | 1,596,000 | [1] | 300,000 | 5,000,000 | 1,000 | |||||||||
Issuance of common stock | ||||||||||||||
For services | 105 | 105 | ||||||||||||
For services, shares | [1] | 20,000 | ||||||||||||
From exercises of warrants | 3,166 | 3,166 | ||||||||||||
From exercises of warrants, shares | [1] | 517,000 | ||||||||||||
For fractional shares rounding up due to reverse stock split, shares | [1] | 5,000 | ||||||||||||
Issuance of common stock from conversion of preferred stock | $ 1 | (1) | ||||||||||||
Issuance of common stock from conversion of preferred stock, shares | 671,000 | [1] | 27,881 | (50,000) | (1,000) | |||||||||
Warrant modification | 40 | 40 | ||||||||||||
Stock-based compensation | 597 | 597 | ||||||||||||
Net loss | (2,635) | (2,635) | ||||||||||||
Ending balance at Dec. 31, 2015 | 1,594 | $ 3 | $ 5 | 98,970 | (97,384) | |||||||||
Ending balance, shares at Dec. 31, 2015 | 2,809,000 | [1] | 250,000 | 5,000,000 | ||||||||||
Issuance of common stock | ||||||||||||||
For services | 105 | 105 | ||||||||||||
For services, shares | [1] | 58,000 | ||||||||||||
From exercises of warrants | 1,852 | $ 1 | 1,851 | |||||||||||
From exercises of warrants, shares | [1] | 901,000 | ||||||||||||
Issuance of preferred stock, shares | 2,000 | 4,000 | ||||||||||||
Issuance of common stock from conversion of preferred stock, shares | [1] | 183,000 | ||||||||||||
Stock-based compensation | 972 | 972 | ||||||||||||
Net loss | (1,079) | (1,079) | ||||||||||||
Ending balance at Dec. 31, 2016 | $ 3,444 | $ 4 | $ 5 | $ 101,898 | $ (98,463) | |||||||||
Ending balance, shares at Dec. 31, 2016 | 3,951,000 | [1] | 250,000 | 5,000,000 | 2,000 | 4,000 | ||||||||
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