Note 7 - Notes Payable - New Credit Facility (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Notes payable, net of debt issuance cost, current	$ 6,946	$ 3,929
Notes payable, net of debt issuance cost	58,094	65,172
Notes payable, net of debt issuance cost	65,862
New Credit Facility [Member]
Long-term Debt	7,415
Current Debt	58,447
Loan with CoBank, ACB (the “Credit Facility”); variable interest rate of 4.66% and 5.95% at December 31, 2020 and 2019, respectively. Interest is monthly and paid in arrears on the last business day of each month. The Credit Facility is secured by the total assets of the subsidiary guarantors. The unpaid balance is due November 3, 2022.	65,862	70,212
Debt issuance cost, current	(469)
Debt issuance cost, long-term	(353)
Debt issuance cost	(822)	(1,111)
Notes payable, net of debt issuance cost, current	6,946
Notes payable, net of debt issuance cost	58,094
Notes payable, net of debt issuance cost	$ 65,040	$ 69,101

Gross amount of current maturity of long-term debt due within one year or the normal operating cycle, if longer.

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