Quarterly report pursuant to Section 13 or 15(d)

Convertible Preferred Stock and Stockholders' Equity (Deficit) - (Details)

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Convertible Preferred Stock and Stockholders' Equity (Deficit) - (Details) - USD ($)
3 Months Ended
Apr. 18, 2019
Mar. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]      
Temporary Equity, Shares Authorized   1,250,000 1,250,000
Liquidation preference   $ 1,076,000 $ 1,056,000
Series A Preferred Stock [Member]      
Class of Stock [Line Items]      
Temporary Equity, Shares Authorized   1,250,000  
Preferred Stock, Shares Issued and Outstanding   250,000  
Proceeds from the issuance of preferred stock, net of issuance costs $ 1,000,000 $ 920,000  
Conversion price per share $ 80.00 $ 80.00  
Liquidation preference   $ 1,076,000