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Condensed Consolidated Statements of Equity (Unaudited) - USD ($)
Common Stock [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Common Stock [Member]
Related Party Convertible Debt Price Reset [Member]
Common Stock [Member]
At The Market Offering Agreement [Member]
Common Stock [Member]
Additional Paid-in Capital [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Additional Paid-in Capital [Member]
Related Party Convertible Debt Price Reset [Member]
Additional Paid-in Capital [Member]
At The Market Offering Agreement [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Related Party Convertible Debt Price Reset [Member]
Retained Earnings [Member]
At The Market Offering Agreement [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
AOCI Attributable to Parent [Member]
Related Party Convertible Debt Price Reset [Member]
AOCI Attributable to Parent [Member]
At The Market Offering Agreement [Member]
AOCI Attributable to Parent [Member]
Noncontrolling Interest [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Noncontrolling Interest [Member]
Related Party Convertible Debt Price Reset [Member]
Noncontrolling Interest [Member]
At The Market Offering Agreement [Member]
Noncontrolling Interest [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Related Party Convertible Debt Price Reset [Member]
At The Market Offering Agreement [Member]
Total
Balance (in shares) (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 0                                              
Balance (in shares) at Dec. 31, 2021       279,629                                        
Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 $ 0       $ (10,681,000)       $ 9,739,000       $ 0       $ 0       $ (942,000)      
Balance at Dec. 31, 2021       $ 0       $ 268,459,000       $ (264,662,000)       $ 31,000       $ (431,000)       $ 3,397,000
Stock-based compensation expense               42,000                               42,000
Related party convertible note price reset           $ 213,000                               $ 213,000    
Sale of common stock and warrants, net (in shares)     20,407                                       20,407  
Sale of common stock and warrants, net     $ 0       $ 594,000                               $ 594,000  
Foreign currency translation gain                               14,000               14,000
Net loss                       (1,910,000)               (126,000)       (2,036,000)
Related party convertible note price reset           213,000                               213,000    
Balance (in shares) at Mar. 31, 2022       300,036                                        
Balance at Mar. 31, 2022       $ 0       258,627,000       (256,833,000)       45,000       (557,000)       1,282,000
Balance (in shares) (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 0                                              
Balance (in shares) at Dec. 31, 2021       279,629                                        
Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021 $ 0       $ (10,681,000)       $ 9,739,000       $ 0       $ 0       $ (942,000)      
Balance at Dec. 31, 2021       $ 0       268,459,000       (264,662,000)       31,000       (431,000)       3,397,000
Foreign currency translation gain                                               45,000
Balance (in shares) at Jun. 30, 2022       632,257                                        
Balance at Jun. 30, 2022       $ 1,000       265,623,000       (259,521,000)       76,000       (670,000)       5,509,000
Balance (in shares) at Mar. 31, 2022       300,036                                        
Balance at Mar. 31, 2022       $ 0       258,627,000       (256,833,000)       45,000       (557,000)       1,282,000
Stock-based compensation expense               72,000               0       0       72,000
Related party convertible note price reset   $ 0       2,475,000       $ 0       $ 0       $ 0       2,475,000    
Conversion of note payable to common stock (in shares)       234,495                                        
Conversion of note payable to common stock       $ 1,000       2,999,000       0       0       0       3,000,000
Sale of common stock and warrants, net (in shares)     97,726                                          
Sale of common stock and warrants, net     $ 0       $ 1,450,000       $ 0       $ 0       $ 0       $ 1,450,000  
Foreign currency translation gain               0       0       31,000       0       31,000
Net loss               0       (2,688,000)       0       (113,000)       (2,801,000)
Related party convertible note price reset   0       2,475,000       0       0       0       2,475,000    
Balance (in shares) at Jun. 30, 2022       632,257                                        
Balance at Jun. 30, 2022       $ 1,000       265,623,000       (259,521,000)       76,000       (670,000)       5,509,000
Balance (in shares) at Dec. 31, 2022       1,037,138                                        
Balance at Dec. 31, 2022       $ 1,000       270,377,000       (266,193,000)       111,000       (973,000)       3,323,000
Stock-based compensation expense               10,000                               10,000
Related party convertible note price reset   0   $ 0   3,160,000   43,000   0   0   0   0   0   0   3,160,000   43,000
Conversion of note payable to common stock (in shares)       215,000                                        
Conversion of note payable to common stock       $ 1,000       602,000       0       0       0       603,000
Sale of common stock and warrants, net (in shares)       125,000                                        
Sale of common stock and warrants, net       $ 0       2,640,000       0       0       0       2,640,000
Exercise of warrants (in shares)       158,731                                        
Exercise of warrants       $ 0       421,000       0       0       0       421,000
Foreign currency translation gain                               (6,000)               (6,000)
Net loss                       (5,086,000)               (96,000)       (5,182,000)
Related party convertible note price reset   $ 0   $ 0   $ 3,160,000   43,000   $ 0   0   $ 0   0   $ 0   0   3,160,000   43,000
Balance (in shares) at Mar. 31, 2023       1,535,869                                        
Balance at Mar. 31, 2023       $ 2,000       277,253,000       (271,279,000)       105,000       (1,069,000)       5,012,000
Balance (in shares) at Dec. 31, 2022       1,037,138                                        
Balance at Dec. 31, 2022       $ 1,000       270,377,000       (266,193,000)       111,000       (973,000)       3,323,000
Related party convertible note price reset                                           3,160,000   43,000
Foreign currency translation gain                                               (6,000)
Related party convertible note price reset                                           $ 3,160,000   43,000
Balance (in shares) at Jun. 30, 2023       2,482,298                                        
Balance at Jun. 30, 2023       $ 2,000       277,266,000       (273,539,000)       105,000       (1,207,000)       2,627,000
Balance (in shares) at Mar. 31, 2023       1,535,869                                        
Balance at Mar. 31, 2023       $ 2,000       277,253,000       (271,279,000)       105,000       (1,069,000)       5,012,000
Stock-based compensation expense       $ 0       13,000       0       0       0       13,000
Exercise of warrants (in shares)       946,429                                        
Exercise of warrants       $ 0       0       0       0       0       0
Foreign currency translation gain                                               0
Net loss               0       (2,260,000)       0       (138,000)       (2,398,000)
Balance (in shares) at Jun. 30, 2023       2,482,298                                        
Balance at Jun. 30, 2023       $ 2,000       $ 277,266,000       $ (273,539,000)       $ 105,000       $ (1,207,000)       $ 2,627,000