Consolidated Statements Of Redeemable Preferred Stock And Shareholders' Equity (Deficit) - USD ($) $ in Thousands |
Total |
Series J Convertible Redeemable Preferred Stock |
Series H Convertible Redeemable Preferred Stock |
Series F Convertible Preferred Stock |
Common Stock |
Common Stock
Series J Convertible Redeemable Preferred Stock
|
Common Stock
Series H Convertible Redeemable Preferred Stock
|
Additional Paid-in Capital |
Additional Paid-in Capital
Series E Convertible Preferred Stock
|
Additional Paid-in Capital
Series J Convertible Redeemable Preferred Stock
|
Additional Paid-in Capital
Series H Convertible Redeemable Preferred Stock
|
Additional Paid-in Capital
Series F Convertible Preferred Stock
|
Convertible Preferred Stock
Series F Convertible Preferred Stock
|
Accumulated Other Comprehensive Loss |
Accumulated Deficit |
Mezzanine Equity
Series J Convertible Redeemable Preferred Stock
|
Mezzanine Equity
Series I Preferred Stock
|
Mezzanine Equity
Series H Convertible Redeemable Preferred Stock
|
Mezzanine Equity
Series F Convertible Preferred Stock
|
Mezzanine Equity
Series G Preferred Stock
|
Balance at Dec. 31, 2020 |
|
$ 10,028
|
|
|
|
|
|
|
$ 261,671
|
|
|
|
|
|
|
$ (251,376)
|
|
|
|
$ 118
|
|
Balance, shares at Dec. 31, 2020 |
|
|
|
|
|
39,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,000
|
|
Conversion of Convertible Securities |
|
|
|
|
|
|
|
|
|
$ 13,291
|
|
|
$ 630
|
$ (630)
|
|
|
|
|
|
|
|
Conversion of convertible preferred stock, shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,000)
|
|
|
|
|
|
|
|
Sale of common stock, net |
|
13,291
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of common stock, net, shares |
|
|
|
|
1,000
|
6,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise of stock options, net |
|
$ 132
|
|
|
|
|
|
|
132
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise of stock options, net, shares |
[1] |
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of common stock for settlement of liability |
|
$ 510
|
|
|
|
|
|
|
510
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of Restricted Shares |
|
164
|
|
|
|
|
|
|
164
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock-based compensation |
|
2,416
|
|
|
|
|
|
|
2,416
|
|
|
|
|
|
|
|
|
|
|
|
|
Deemed dividend on convertible preferred stock |
|
|
|
|
$ 500
|
|
|
|
|
|
|
|
(546)
|
$ 546
|
|
|
|
|
|
|
|
Issuance of stock from RSUs, net, share |
|
|
|
|
|
2,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Deemed dividend on convertible preferred stock |
|
(546)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Conversion of convertible preferred stock |
|
|
|
|
|
|
|
|
|
$ 13,291
|
|
|
630
|
$ (630)
|
|
|
|
|
|
|
|
Stock Issued During Period, Shares, Conversion of Convertible Securities |
|
|
|
|
|
|
|
|
|
|
|
|
|
(1,000)
|
|
|
|
|
|
|
|
Exercise of common stock warrants |
|
15,063
|
|
|
|
|
|
|
15,063
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock warrants exercised, shares |
|
|
|
|
|
14,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net Income (Loss) |
|
(16,158)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(16,158)
|
|
|
|
|
|
Foreign currency translation adjustments |
|
(238)
|
|
|
|
|
|
|
|
|
|
|
|
|
$ (238)
|
|
|
|
|
|
|
Balance at Dec. 31, 2021 |
|
25,208
|
|
|
|
|
|
|
|
|
|
|
|
|
(385)
|
(267,534)
|
|
|
|
|
|
Balance (in shares) at Dec. 31, 2021 |
|
|
|
|
|
61,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2021 |
|
|
|
|
|
|
|
|
293,331
|
|
|
|
|
$ 34
|
(623)
|
|
|
|
|
|
|
Balance, shares at Dec. 31, 2021 |
|
|
|
|
251
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Conversion of Convertible Securities |
|
|
|
|
|
|
|
|
|
|
|
|
251
|
(251)
|
|
|
|
|
|
|
|
Sale of common stock, net |
|
$ 5,602
|
|
|
|
|
|
|
5,602
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of common stock, net, shares |
|
|
|
|
|
7,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise of stock options, net, shares |
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of Restricted Shares |
|
$ 109
|
|
|
|
|
|
|
109
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock-based compensation |
|
2,117
|
|
|
|
|
|
|
2,117
|
|
|
|
|
|
|
|
|
|
|
|
|
Deemed dividend on convertible preferred stock |
|
|
|
|
$ 200
|
|
|
|
|
|
|
|
(217)
|
217
|
|
|
|
|
|
|
|
Issuance of stock from RSUs, net |
|
|
|
|
|
|
|
|
596
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of stock from RSUs, net, share |
|
|
|
|
|
1,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of convertible preferred stock in rights offering, net of offering costs, shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
154,000
|
Deemed dividend on convertible preferred stock |
|
(217)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Temporary Equity Stock Redemption Period Shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(154,000)
|
Conversion of convertible preferred stock |
|
|
|
|
|
|
|
|
|
|
|
|
$ 251
|
$ (251)
|
|
|
|
|
|
|
|
Phant Award |
|
596
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise of common stock warrants |
|
1
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock warrants exercised, shares |
|
|
|
|
|
8,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net Income (Loss) |
|
(28,634)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(28,634)
|
|
|
|
|
|
Foreign currency translation adjustments |
|
(110)
|
|
|
|
|
|
|
|
|
|
|
|
|
(110)
|
|
|
|
|
|
|
Balance at Dec. 31, 2022 |
|
$ 4,889
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(296,168)
|
|
|
|
|
|
Balance (in shares) at Dec. 31, 2022 |
|
77,000
|
|
|
|
77,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2022 |
|
$ 0
|
|
|
|
|
|
|
301,790
|
|
|
|
|
|
(733)
|
|
|
|
|
|
|
Conversion of Convertible Securities |
|
|
$ 8,883
|
$ 13,154
|
|
|
$ 2
|
$ 1
|
|
|
$ 8,881
|
$ 13,153
|
|
|
|
|
$ (8,883)
|
|
$ (13,154)
|
|
|
Conversion of convertible preferred stock, shares |
|
|
|
|
|
|
2,038,000
|
680,000
|
|
|
|
|
|
|
|
|
(66,000)
|
|
(190,000)
|
|
|
Sale of common stock, net |
|
$ 9,553
|
|
|
|
|
|
|
9,553
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of common stock, net, shares |
|
|
|
|
|
503,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Exercise of stock options, net, shares |
|
0
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock-based compensation |
|
$ 1,331
|
|
|
|
|
|
|
1,331
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of stock from RSUs, net, share |
|
|
|
|
|
4,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Issuance of convertible preferred stock in rights offering, net of offering costs |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 2,738
|
|
|
Issuance of Series H Convertible Redeemable Preferred Stock, adjustment to redemption, Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 9,377
|
|
|
Issuance of convertible preferred stock in rights offering, net of offering costs, shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
75,000
|
85,000
|
175,000
|
|
|
Deemed dividend on convertible preferred stock |
|
(16,987)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Temporary Equity Stock Redemption Period Shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(85,000)
|
|
|
|
Conversion of convertible preferred stock |
|
|
8,883
|
13,154
|
|
|
$ 2
|
$ 1
|
|
|
8,881
|
13,153
|
|
|
|
|
$ (8,883)
|
|
$ (13,154)
|
|
|
Stock Issued During Period Value Preferred Stock Warrants |
|
|
(148)
|
(615)
|
|
|
|
|
|
|
(148)
|
(615)
|
|
|
|
|
|
|
$ 1,400
|
|
|
Proceeds from Issuance of Convertible Preferred Stock |
|
$ (0)
|
|
(0)
|
|
|
|
|
|
|
|
|
|
|
|
|
2,720
|
|
|
|
|
Convertible Preferred Stock, adjustment to redemption value |
|
|
$ (7,611)
|
$ 9,345
|
|
|
|
|
|
|
$ (7,611)
|
$ (9,345)
|
|
|
|
|
$ 7,610
|
|
|
|
|
Stock Issued During Period, Shares, Conversion of Convertible Securities |
|
|
|
|
|
|
2,038,000
|
680,000
|
|
|
|
|
|
|
|
|
(66,000)
|
|
(190,000)
|
|
|
Preferred Stock Warrants Exercised |
|
20,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000
|
|
|
|
|
Exercise of Series H Convertible Redeemable Preferred Stock Warrants |
|
$ 1,385
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 410
|
|
|
|
|
Paid-in-kind dividend on Series J Convertible Preferred Stock, Shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3,000
|
|
|
|
|
Exercise of common stock warrants |
|
114
|
|
|
|
|
|
|
114
|
|
|
|
|
|
|
|
|
|
|
|
|
Common stock warrants exercised, shares |
|
|
|
|
|
114,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Net Income (Loss) |
|
(20,632)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(20,632)
|
|
|
|
|
|
Foreign currency translation adjustments |
|
180
|
|
|
|
|
|
|
|
|
|
|
|
|
180
|
|
|
|
|
|
|
Balance at Dec. 31, 2023 |
|
$ (247)
|
|
|
|
$ 3
|
|
|
|
|
|
|
|
|
|
$ (316,800)
|
|
|
|
|
|
Balance (in shares) at Dec. 31, 2023 |
|
3,416,000
|
|
|
|
3,416,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance at Dec. 31, 2023 |
|
$ 2,203
|
|
|
|
|
|
|
$ 317,103
|
|
|
|
|
|
$ (553)
|
|
|
|
$ 346
|
|
|
Temporary Equity Shares Ending Balance at Dec. 31, 2023 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,857
|
|
|
|
|
Balance, shares at Dec. 31, 2023 |
|
|
|
5,000
|
|
|
|
|
|
|
|
|
|
|
|
|
15,000
|
|
5,000
|
|
|
|
|