Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.21.2
Summary of Significant Accounting Policies (Details Narrative)
3 Months Ended 6 Months Ended
Apr. 22, 2021
USD ($)
Apr. 22, 2021
CNY (¥)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Sep. 23, 2020
ft²
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Accounts Receivable, Allowance for Credit Loss, Current     $ 189,000   $ 189,000     $ 157,000  
Incremental Direct Costs.     34,000 $ 23,000 69,000 $ 52,000      
Depreciation     8,000 25,000 18,000 51,000      
Area of Land | ft²                 4,902
Lessor, Operating Lease, Term of Contract                 84 months
Sale of Stock, Consideration Received Per Transaction | ¥   ¥ 18,841,064.15              
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent     46,000 58,000 61,000 127,000      
Disposal Group, Including Discontinued Operation, Assets, Current     4,600   4,600     6,898  
Current assets from discontinued operations               6,900  
Disposal Group, Including Discontinued Operation, Assets, Noncurrent     205,813   205,813     3,085,178  
Disposal Group, Including Discontinued Operation, Liabilities, Current     402,203   402,203     $ 375,276  
Marketing and Advertising Expense     $ 217,000 $ 180,000 $ 410,000 $ 337,000      
Income Tax Examination, Penalties and Interest Accrued             $ 0    
PDN China Account [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Sale of Stock, Consideration Received Per Transaction $ 2,900,000