Annual report pursuant to Section 13 and 15(d)

Note 7 - Debt (Details Textual)

v3.21.1
Note 7 - Debt (Details Textual) - USD ($)
$ in Thousands
 12 Months Ended
Nov. 07, 2019
Apr. 15, 2019
Dec. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Feb. 05, 2019
Dec. 31, 2018
Capital Expenditures Incurred but Not yet Paid [1]     $ 793 $ 2,773      
Long-term Debt, Total     38,801 38,377      
Term Loan [Member]              
Long-term Debt, Total     21,920 27,687      
Equipment Line [Member]              
Long-term Debt, Total     6,000 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     10,000 1,574      
Credit Facility [Member] | Term Loan [Member]              
Long-term Debt, Total     $ 21,900        
Credit Facility [Member] | Eurodollar Loan [Member]              
Debt Instrument, Interest Rate, Effective Percentage     2.19%        
LIBOR Rate     0.19%        
Credit Facility [Member] | Eurodollar Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]              
Debt Instrument, Basis Spread on Variable Rate     2.00%        
Credit Facility [Member] | CB Floating Rate Loan [Member]              
Debt Instrument, Interest Rate, Effective Percentage     2.25%        
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     (1.00%)        
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   $ 200   $ 100
Debt Instrument, Periodic Payment, Principal 1,200            
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     15,600        
Financing Agreement [Member]              
Long-term Debt, Total     947 $ 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     $ 900        
[1] Amounts consist of current liabilities for medical equipment that have not been included in investing activities. These amounts have not been paid for as of December 31, 2020 and 2019, respectively, but will be included as a cash outflow from investing activities for purchases of medical equipment and property when paid.