Annual report pursuant to Section 13 and 15(d)

Leases. (Details)

v3.21.1
Leases. (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Leases. (Details) [Line Items]    
Weighted average discount rate 6.00% 6.00%
Operating lease costs $ 5,461,000 $ 9,948,000
General and administrative expenses 482,000  
Selling, General and Administrative Expense $ 31,980,000 $ 35,453,000
Minimum [Member]    
Leases. (Details) [Line Items]    
Lease term 1 year  
Maximum [Member]    
Leases. (Details) [Line Items]    
Lease term 55 years  
Equipment [Member]    
Leases. (Details) [Line Items]    
Weighted average remaining lease terms 1 year 36 days  
Land Related [Member]    
Leases. (Details) [Line Items]    
Weighted average remaining lease terms 4 years 266 days