Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Summary of Debt (Details)

v3.20.2
Long-term Debt - Summary of Debt (Details) - USD ($)
Sep. 30, 2020
Dec. 31, 2019
Jan. 01, 2019
Dec. 20, 2018
Debt Instrument [Line Items]        
Long-term Debt $ 71,343,000 $ 75,554,000    
$100 million Revolving line of credit, due December 20, 2021        
Debt Instrument [Line Items]        
Principal amount of debt       $ 100,000,000
$20 million Term loan, due February 1, 2024        
Debt Instrument [Line Items]        
Principal amount of debt     $ 20,000,000 $ 20,000,000
Revolving Credit Facility | $100 million Revolving line of credit, due December 20, 2021        
Debt Instrument [Line Items]        
Long-term Debt 58,010,000 59,221,000    
Secured Debt | $20 million Term loan, due February 1, 2024        
Debt Instrument [Line Items]        
Long-term Debt $ 13,333,000 $ 16,333,000