Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Narrative) (Details)

v3.21.2
Discontinued Operations (Narrative) (Details)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 11, 2020
USD ($)
item
Jun. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Proceeds from sale         $ 8,900,000
Gain on sale of business line         $ 2,247,000
Number of buildings leased to purchaser | item 2        
Restructuring expense   $ 0 $ 0 $ 764,000  
Restructuring payments     249,000    
Restructuring accrual   $ 3,000 $ 3,000    
Remainder of Suttle Business Lines [Member] | Discontinued Operations, Disposed of by Sale [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Proceeds from sale $ 8,000,000        
Working capital adjustment, period after close 90 days        
Minimum [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Base rents $ 6,970        
Maximum [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Base rents $ 7,180