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Significant Accounting Policies (Q1) (Details)
Jun. 10, 2020
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Jun. 09, 2020
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Mar. 31, 2020
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Dec. 31, 2019
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Dec. 31, 2018
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Significant Accounting Policies [Abstract]          
Common stock, shares issued (in shares)     600,090 600,090 548,590
Common stock, shares outstanding (in shares)     600,090 600,090 548,590
Subsequent Event [Member]          
Significant Accounting Policies [Abstract]          
Reverse stock split ratio 0.01        
Common stock, shares issued (in shares) 600,090 60,009,005      
Common stock, shares outstanding (in shares) 600,090 60,009,005