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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Additional Information) (Details)
 1 Months Ended 12 Months Ended
Jan. 01, 2019
USD ($)
Feb. 17, 2016
USD ($)
Jan. 31, 2020
item
Jan. 31, 2018
USD ($)
Dec. 31, 2019
USD ($)
item
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Restricted cash              
Restricted cash         $ 62,609,361 $ 28,609,307  
Inventories              
Inventory write-down         326,598 0 $ 0
Property, Plant and Equipment              
Interest expense capitalized         6,608,928 1,203,547 47,507
Prepaid land use rights              
Lease Expenses         582,469 586,034 572,722
Impairment of long-lived assets              
Long-lived asset impairment         0 11,482,905 2,987,668
Revenue recognition              
Accounts Receivable, Net, Current         13,287 1,180,598  
Government subsidies              
Unrestricted cash government subsidies         5,576,300 13,136,922 3,704,144
Foreign currency translation              
Aggregate amount of cash and cash equivalents and restricted cash denominated in RMB         113,101,494 81,476,636  
Noncontrolling interest              
Noncontrolling interest         516,467    
Allocated Share-based Compensation Expense         17,896,942 13,788,049 4,200,273
Operating Leases, Future Minimum Payments Due         204,747    
Contract with Customer, Liability         35,182,095 17,482,940  
Contract with Customer, Liability, Revenue Recognized $ 10,200,000     $ 16,400,000      
Basis of presentation              
Excess of current liabilities over current assets         270,800,000    
Capital commitments for purchases of property, plant and equipment         $ 53,900,000    
Net income and positive cash flow from operations, generation period         3 years    
Net operating cash inflow         $ 180,990,569 95,553,040 142,704,394
Capacity of polysilicon per annum (in MT) | item         30,000    
Concentration of credit risk              
Allowance for doubtful accounts         $ 0 0  
Leases              
Right-of-use assets         196,628 0  
Lease liability, current         84,819 0  
Lease liability - long-term portion         77,323 0  
Accounts receivable | Credit concentration              
Revenue recognition              
Accounts Receivable, Net, Current         13,287 1,087,719  
Discontinued Operations              
Inventories              
Inventory write-down         326,598 851,008 0
Impairment of long-lived assets              
Long-lived asset impairment         0 18,769,938 2,987,668
Discontinued Operations | Wafer Manufacturing operations              
Impairment of long-lived assets              
Long-lived asset impairment           7,287,033  
Shipping and Handling [Member]              
Shipping and handling              
Cost of Goods and Services Sold         $ 6,311,797 $ 4,474,956 $ 4,099,716
Subsequent events              
Basis of presentation              
Capacity of polysilicon per annum (in MT) | item     70,000        
Syned Fire Safety Service Co Ltd [Member]              
Investment In Affiliate [Abstract]              
Consideration paid   $ 581,581          
Equity interest acquired (as a percent)   15.29%