Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Debt (Details Textual)

v3.20.2
Note 7 - Debt (Details Textual) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Nov. 07, 2019
Apr. 15, 2019
Sep. 30, 2020
Dec. 31, 2019
Dec. 31, 2020
Mar. 31, 2019
Feb. 05, 2019
Dec. 31, 2018
Long-term Debt, Total     $ 34,793 $ 38,377        
Term Loan [Member]                
Long-term Debt, Total     23,073 27,687        
Equipment Line [Member]                
Long-term Debt, Total     6,400 7,600        
Revolving Credit Facility [Member]                
Line of Credit Facility, Current Borrowing Capacity     11,750 11,750        
The 2019 Equipment Line [Member]                
Long-term Debt, Total     4,274 1,574        
Credit Facility [Member] | Term Loan [Member]                
Long-term Debt, Total     $ 23,100          
Credit Facility [Member] | Eurodollar Loan [Member]                
Debt Instrument, Interest Rate, Effective Percentage     2.44%          
LIBOR Rate     0.19%          
Credit Facility [Member] | Eurodollar Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate     2.25%          
Credit Facility [Member] | CB Floating Rate Loan [Member]                
Debt Instrument, Interest Rate, Effective Percentage     2.50%          
Credit Facility [Member] | CB Floating Rate Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate, Before Margin Rate     2.50%          
Credit Facility [Member] | CB Floating Rate Loan [Member] | CB Floating Rate [Member]                
Debt Instrument, Basis Spread on Variable Rate     (0.75%)          
Lender Prime Rate     3.25%          
Credit Facility [Member] | Maximum [Member] | Eurodollar Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate     3.00%          
Credit Facility [Member] | Maximum [Member] | CB Floating Rate Loan [Member] | Greater of Prime Rate or LIBOR Plus 2.5% [Member]                
Debt Instrument, Basis Spread on Variable Rate     0.25%          
Credit Facility [Member] | Minimum [Member] | Eurodollar Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]                
Debt Instrument, Basis Spread on Variable Rate     2.00%          
Credit Facility [Member] | Minimum [Member] | CB Floating Rate Loan [Member] | Greater of Prime Rate or LIBOR Plus 2.5% [Member]                
Debt Instrument, Basis Spread on Variable Rate     (1.00%)          
Credit Facility [Member] | Equipment Line [Member]                
Line of Credit Facility, Maximum Borrowing Capacity             $ 8,000  
Line of Credit Facility Additional Maximum Borrowing Capacity $ 10,000              
Line of Credit Facility, Invoiced Hard Cost Maximum Percent 90.00%              
Line of Credit Facility, Maximum One-time Charges $ 300              
Line of Credit Facility, Maximum Lease Buyout Expenses           $ 200   $ 100
Debt Instrument, Periodic Payment, Principal 1,200              
Credit Facility [Member] | Equipment Line [Member] | Forecast [Member]                
Line of Credit Facility, Maximum Lease Buyout Expenses         $ 200      
Credit Facility [Member] | Equipment Line [Member] | Maximum [Member]                
Capital Expenditures Incurred but Not yet Paid       7,000        
Credit Facility [Member] | Revolving Credit Facility [Member]                
Line of Credit Facility, Maximum Borrowing Capacity $ 11,800   $ 11,800          
Line of Credit Facility, Borrowing Base     15,500          
Financing Agreement [Member]                
Long-term Debt, Total     1,116 $ 1,599        
Financing Agreement [Member] | Medical Equipment [Member]                
Line of Credit Facility, Maximum Borrowing Capacity   $ 2,000            
Debt Instrument, Term (Month)   3 years            
Line of Credit Facility, Current Borrowing Capacity     $ 1,100