Condensed Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)
|
Preferred Stock [Member] |
Common Stock Outstanding [Member] |
Treasury Stock, Common [Member] |
Additional Paid-in Capital [Member] |
Retained Earnings [Member] |
Total |
| Balance (in shares) at Dec. 31, 2023 |
1,930
|
573,644
|
|
|
|
|
| Balance at Dec. 31, 2023 |
$ 0
|
$ 0
|
$ (181,000)
|
$ 233,913,000
|
$ (228,231,000)
|
$ 5,501,000
|
| Balance (in shares) at Dec. 31, 2023 |
|
|
189
|
|
|
|
| Net loss |
0
|
0
|
$ 0
|
0
|
(1,136,000)
|
(1,136,000)
|
| Series F Preferred Stock dividends |
$ 0
|
$ 0
|
$ 0
|
(44,000)
|
0
|
(44,000)
|
| Issuances from Preferred Stock conversions (in shares) |
(922)
|
90,056
|
0
|
|
|
|
| Series F Preferred Stock conversions |
$ 0
|
$ 0
|
$ 0
|
82,000
|
0
|
82,000
|
| Stock-based compensation (in shares) |
0
|
0
|
0
|
|
|
|
| Stock-based compensation |
$ 0
|
$ 0
|
$ 0
|
31,000
|
0
|
31,000
|
| Balance (in shares) at Mar. 31, 2024 |
1,008
|
663,700
|
|
|
|
|
| Balance at Mar. 31, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
233,982,000
|
(229,367,000)
|
4,434,000
|
| Balance (in shares) at Mar. 31, 2024 |
|
|
189
|
|
|
|
| Balance (in shares) at Dec. 31, 2023 |
1,930
|
573,644
|
|
|
|
|
| Balance at Dec. 31, 2023 |
$ 0
|
$ 0
|
$ (181,000)
|
233,913,000
|
(228,231,000)
|
5,501,000
|
| Balance (in shares) at Dec. 31, 2023 |
|
|
189
|
|
|
|
| Net loss |
|
|
|
|
|
(2,119,000)
|
| Balance (in shares) at Jun. 30, 2024 |
545
|
862,612
|
|
|
|
|
| Balance at Jun. 30, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
235,583,000
|
(230,350,000)
|
5,052,000
|
| Balance (in shares) at Jun. 30, 2024 |
|
|
189
|
|
|
|
| Balance (in shares) at Dec. 31, 2023 |
1,930
|
573,644
|
|
|
|
|
| Balance at Dec. 31, 2023 |
$ 0
|
$ 0
|
$ (181,000)
|
233,913,000
|
(228,231,000)
|
5,501,000
|
| Balance (in shares) at Dec. 31, 2023 |
|
|
189
|
|
|
|
| Balance (in shares) at Dec. 31, 2024 |
545
|
1,144,926
|
|
|
|
|
| Balance at Dec. 31, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
236,458,000
|
(232,274,000)
|
$ 4,003,000
|
| Balance (in shares) at Dec. 31, 2024 |
|
|
189
|
|
|
189
|
| Balance (in shares) at Mar. 31, 2024 |
1,008
|
663,700
|
|
|
|
|
| Balance at Mar. 31, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
233,982,000
|
(229,367,000)
|
$ 4,434,000
|
| Balance (in shares) at Mar. 31, 2024 |
|
|
189
|
|
|
|
| Net loss |
$ 0
|
$ 0
|
$ 0
|
0
|
(983,000)
|
(983,000)
|
| Common warrant exercise, net of fees (in shares) |
1,648
|
0
|
0
|
|
|
|
| Common warrant exercise, net of fees |
$ 0
|
$ 0
|
$ 0
|
1,478,000
|
0
|
1,478,000
|
| Series F Preferred Stock dividends |
$ 0
|
$ 0
|
$ 0
|
(20,000)
|
0
|
(20,000)
|
| Issuances from Preferred Stock conversions (in shares) |
(2,111)
|
198,912
|
0
|
|
|
|
| Series F Preferred Stock conversions |
$ 0
|
$ 0
|
$ 0
|
112,000
|
0
|
112,000
|
| Stock-based compensation (in shares) |
0
|
0
|
0
|
|
|
|
| Stock-based compensation |
$ 0
|
$ 0
|
$ 0
|
31,000
|
0
|
31,000
|
| Balance (in shares) at Jun. 30, 2024 |
545
|
862,612
|
|
|
|
|
| Balance at Jun. 30, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
235,583,000
|
(230,350,000)
|
5,052,000
|
| Balance (in shares) at Jun. 30, 2024 |
|
|
189
|
|
|
|
| Balance (in shares) at Dec. 31, 2024 |
545
|
1,144,926
|
|
|
|
|
| Balance at Dec. 31, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
236,458,000
|
(232,274,000)
|
$ 4,003,000
|
| Balance (in shares) at Dec. 31, 2024 |
|
|
189
|
|
|
189
|
| Net loss |
0
|
$ 0
|
$ 0
|
0
|
(672,000)
|
$ (672,000)
|
| Common warrant exercise, net of fees (in shares) |
|
10,000
|
|
|
|
|
| Common warrant exercise, net of fees |
|
|
|
31,000
|
|
31,000
|
| Series F Preferred Stock dividends |
$ 0
|
$ 0
|
0
|
(12,000)
|
0
|
(12,000)
|
| Balance (in shares) at Mar. 31, 2025 |
545
|
1,154,926
|
|
|
|
|
| Balance at Mar. 31, 2025 |
$ 0
|
$ 0
|
$ (181,000)
|
236,477,000
|
(232,946,000)
|
3,350,000
|
| Balance (in shares) at Mar. 31, 2025 |
|
|
189
|
|
|
|
| Balance (in shares) at Dec. 31, 2024 |
545
|
1,144,926
|
|
|
|
|
| Balance at Dec. 31, 2024 |
$ 0
|
$ 0
|
$ (181,000)
|
236,458,000
|
(232,274,000)
|
$ 4,003,000
|
| Balance (in shares) at Dec. 31, 2024 |
|
|
189
|
|
|
189
|
| Net loss |
|
|
|
|
|
$ (1,277,000)
|
| Common warrant exercise, net of fees (in shares) |
|
|
|
|
|
404,864
|
| Balance (in shares) at Jun. 30, 2025 |
355
|
1,594,953
|
|
|
|
|
| Balance at Jun. 30, 2025 |
$ 0
|
$ 0
|
$ (181,000)
|
244,984,000
|
(233,551,000)
|
$ 11,252,000
|
| Balance (in shares) at Jun. 30, 2025 |
|
|
189
|
|
|
189
|
| Balance (in shares) at Mar. 31, 2025 |
545
|
1,154,926
|
|
|
|
|
| Balance at Mar. 31, 2025 |
$ 0
|
$ 0
|
$ (181,000)
|
236,477,000
|
(232,946,000)
|
$ 3,350,000
|
| Balance (in shares) at Mar. 31, 2025 |
|
|
189
|
|
|
|
| Net loss |
0
|
$ 0
|
$ 0
|
0
|
(605,000)
|
$ (605,000)
|
| Common warrant exercise, net of fees (in shares) |
|
394,864
|
|
|
|
394,864
|
| Common warrant exercise, net of fees |
|
|
|
1,241,000
|
|
$ 1,241,000
|
| Series F Preferred Stock dividends |
$ 0
|
$ 0
|
$ 0
|
(13,000)
|
0
|
(13,000)
|
| Issuance, preferred (in shares) |
0
|
0
|
0
|
|
|
|
| Proceeds from Private Placement, net of fees |
$ 0
|
$ 0
|
$ 0
|
6,925,000
|
0
|
6,925,000
|
| Advisor warrant issuance |
$ 0
|
$ 0
|
$ 0
|
335
|
0
|
335
|
| Issuances from Preferred Stock conversions (in shares) |
(190)
|
45,163
|
0
|
|
|
|
| Series F Preferred Stock conversions |
$ 0
|
$ 0
|
$ 0
|
19,000
|
0
|
19,000
|
| Balance (in shares) at Jun. 30, 2025 |
355
|
1,594,953
|
|
|
|
|
| Balance at Jun. 30, 2025 |
$ 0
|
$ 0
|
$ (181,000)
|
$ 244,984,000
|
$ (233,551,000)
|
$ 11,252,000
|
| Balance (in shares) at Jun. 30, 2025 |
|
|
189
|
|
|
189
|