Quarterly report pursuant to Section 13 or 15(d)

Loans Payable - Narrative (Details)

v3.21.1
Loans Payable - Narrative (Details)
3 Months Ended
Mar. 12, 2021
USD ($)
Feb. 02, 2021
USD ($)
Jan. 21, 2021
USD ($)
Jul. 15, 2020
USD ($)
Jan. 01, 2019
Mar. 31, 2021
USD ($)
$ / shares
parcel
Mar. 31, 2020
USD ($)
Mar. 11, 2021
$ / shares
shares
Dec. 31, 2020
USD ($)
Dec. 22, 2020
$ / shares
shares
Apr. 30, 2020
Debt Instrument [Line Items]                      
Loans payable, net           $ 338,533,000     $ 334,266,000    
Loan prepayment penalty           $ 687,000 $ 0        
Number of undeveloped parcels | parcel           5          
Scheduled maturities of long-term debt in the next twelve months           $ 38,190,000          
Share Price                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input | $ / shares           3,750          
Series D Preferred Stock                      
Debt Instrument [Line Items]                      
Preferred stock, dividend rate (as a percent)         10.75% 8.75%          
Minimum | Price Volatility                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input           0.5472          
Minimum | Risk Free Interest Rate                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input           0.0029          
Minimum | Series D Preferred Stock                      
Debt Instrument [Line Items]                      
Preferred stock, dividend rate (as a percent) 8.75%                    
Shoppes at Myrtle Park                      
Debt Instrument [Line Items]                      
Monthly Payment           $ 33,180          
Loans payable, net           $ 5,858,000     5,892,000    
Interest Rate           4.45%          
Village of Martinsville                      
Debt Instrument [Line Items]                      
Monthly Payment           $ 89,664          
Loans payable, net           $ 15,881,000     15,979,000    
Interest Rate           4.28%          
Laburnum Square                      
Debt Instrument [Line Items]                      
Loans payable, net           $ 7,665,000     7,665,000    
Interest Rate           4.28%          
Folly Road                      
Debt Instrument [Line Items]                      
Monthly Payment           $ 41,482          
Loans payable, net           $ 7,183,000     7,223,000    
Interest Rate           4.65%          
Columbia Fire Station                      
Debt Instrument [Line Items]                      
Monthly Payment     $ 500,000                
Loans payable, net           $ 3,363,000     3,893,000    
Interest Rate     14.00%     14.00%          
Shoppes at TJ Maxx                      
Debt Instrument [Line Items]                      
Monthly Payment   $ 32,000       $ 32,202          
Loans payable, net   $ 5,150,000       $ 5,150,000     5,193,000    
Interest Rate   5.00%       5.00%          
Walnut Hill Plaza                      
Debt Instrument [Line Items]                      
Loans payable, net           $ 3,252,000     3,287,000    
Interest Rate           5.50%          
Rivergate                      
Debt Instrument [Line Items]                      
Monthly Payment           $ 103,167          
Loans payable, net           21,021,000     21,164,000    
Berkley/Sangaree/Tri-County                      
Debt Instrument [Line Items]                      
Monthly Payment       $ 3,220,000              
Loans payable, net           $ 6,176,000     9,400,000    
Interest Rate           4.78%          
Loan prepayment penalty       $ 687,000              
KeyBank                      
Debt Instrument [Line Items]                      
Interest Rate                     1.00%
Powerscourt Financing Agreement                      
Debt Instrument [Line Items]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares                   496,415  
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares                   $ 3.12  
Wilmington Financing Agreement                      
Debt Instrument [Line Items]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares               1,061,719      
Warrants and rights outstanding, term           5 years          
Wilmington Financing Agreement | Share Price                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input | $ / shares           3.75          
Wilmington Financing Agreement | Price Volatility                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input           0.5472          
Wilmington Financing Agreement | Risk Free Interest Rate                      
Debt Instrument [Line Items]                      
Warrants and rights outstanding, measurement input           0.0091          
Wilmington Financing Agreement | Wilmington Agreement Group 1                      
Debt Instrument [Line Items]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares               510,204      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares               $ 3.430      
Wilmington Financing Agreement | Wilmington Agreement Group 2                      
Debt Instrument [Line Items]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares               424,242      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares               $ 4.125      
Wilmington Financing Agreement | Wilmington Agreement Group 3                      
Debt Instrument [Line Items]                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares               127,273      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares               $ 6.875      
Line of Credit | First National Bank Line of Credit                      
Debt Instrument [Line Items]                      
Monthly Payment           $ 24,656          
Loans payable, net           982,000     1,045,000    
Line of Credit | Powerscourt Financing Agreement                      
Debt Instrument [Line Items]                      
Monthly Payment $ 25,000,000.00                    
Loans payable, net           $ 0     25,000,000    
Interest Rate           13.50%          
Line of Credit | Wilmington Financing Agreement                      
Debt Instrument [Line Items]                      
Loans payable, net $ 35,000,000.00         $ 35,000,000     $ 0    
Interest Rate 8.00%         8.00%          
Debt Instrument, Premium, Percentage Of Principal Payment 5.00%