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Intangible Assets (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2006
Intangible Assets (Details) [Line Items]          
Land use right, useful life 50 years        
Amortization expenses $ 120 $ 110      
Expected amortization expense year one 120        
Expected amortization expense year two 120        
Expected amortization expense year three 120        
Expected amortization expense year four 120        
Expected amortization expense year five $ 120        
Nanjing Jiangning Economic [Member]          
Intangible Assets (Details) [Line Items]          
Land use right, useful life         50 years
Area of land square meters (in Square Meters) | m²         112,442
Suzhou Kunshan Jinxi Tower Jinxing Road [Member]          
Intangible Assets (Details) [Line Items]          
Land use right, useful life       50 years  
Area of land square meters (in Square Meters) | m²       23,333  
Tianjin Wuqing Development Zone [Member]          
Intangible Assets (Details) [Line Items]          
Land use right, useful life     50 years    
Area of land square meters (in Square Meters) | m²     33,427