XML 18 R3.htm IDEA: XBRL DOCUMENT v3.21.4
Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Preferred stock, shares authorized 1,000,000 1,000,000  
Series D Preferred Stock [Member]      
Preferred stock, par value $ 0.01 $ 0.01  
Preferred stock, shares authorized 1,000,000 1,000,000  
Preferred stock, shares issued 920,000 0  
Preferred stock, shares outstanding 920,000 0  
Preferred stock, liquidation preference $ 25.00 $ 25.00  
Series A Common Stock [Member]      
Common stock, par value $ 0.01 $ 0.01 $ 0.01
Common stock, shares authorized 100,000,000 100,000,000 100,000,000
Common stock, shares issued 11,490,230 9,508,363 8,881,842
Common stock, shares outstanding 11,490,230 9,508,363 8,881,842