Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Subsequent Events (Details Textual)

v3.19.3
Note 12 - Subsequent Events (Details Textual) - USD ($)
$ in Thousands
Nov. 07, 2019
Dec. 31, 2020
Sep. 30, 2019
Mar. 31, 2019
Feb. 05, 2019
Dec. 31, 2018
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year     $ 1,745      
Long-term Debt, Maturities, Repayments of Principal in Year Two     7,026      
Long-term Debt, Maturities, Repayments of Principal in Year Three     23,958      
Long-term Debt, Maturities, Repayments of Principal in Year Four     1,822      
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter     2,800      
Equipment Line [Member]            
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year     400      
Long-term Debt, Maturities, Repayments of Principal in Year Two     1,600      
Long-term Debt, Maturities, Repayments of Principal in Year Three     1,600      
Long-term Debt, Maturities, Repayments of Principal in Year Four     1,600      
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter     $ 2,800      
Credit Facility [Member] | Equipment Line [Member]            
Line of Credit Facility, Maximum Borrowing Capacity         $ 8,000  
Line of Credit Facility, Maximum Lease Buyout Expenses       $ 200   $ 100
Credit Facility [Member] | Equipment Line [Member] | Forecast [Member]            
Line of Credit Facility, Maximum Lease Buyout Expenses   $ 200        
Subsequent Event [Member] | Credit Facility [Member] | Equipment Line [Member]            
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 Credity Facility, Maximum Noncash Charges 500          
Debt Instrument, Periodic Payment, Principal 1,200          
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year 100          
Long-term Debt, Maturities, Repayments of Principal in Year Two 200          
Long-term Debt, Maturities, Repayments of Principal in Year Three 20,700          
Long-term Debt, Maturities, Repayments of Principal in Year Four 4,600          
Long-term Debt Maturities, Repayments of Principal in Year Five and Thereafter 12,700          
Subsequent Event [Member] | Credit Facility [Member] | Revolving Credit Facility [Member]            
Line of Credit Facility, Maximum Borrowing Capacity $ 11,800