Annual report pursuant to Section 13 and 15(d)

Concentration of Credit Risk (Details Textual)

v3.20.1
Concentration of Credit Risk (Details Textual) - Credit Concentration Risk [Member]
12 Months Ended
Dec. 31, 2019
USD ($)
Concentration Risk [Line Items]  
Concentration Risk, Percentage 90.00%
Cash and cash equivalents insured by the Federal Deposit Insurance Corporation $ 250,000