Note 6 - Schedule of Other Accounts Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Carrier Access Bills Receivable [Member]
Other Receivables	$ 570	$ 714
NECA Receivable [Member]
Other Receivables	1,030	1,078
Receivables from Alabama Service Fund [Member]
Other Receivables	59	63
Other Miscellaneous [Member]
Other Receivables	63	76
Other Receivables	$ 1,722	$ 1,931