Note 2 - Investments - Telecommunications Stocks Held (Details)	Mar. 29, 2020 shares
ATT [Member]
Investment (in shares)	82,112
Manulife [Member]
Investment (in shares)	2,520
Unit Group Shares [Member]
Investment (in shares)	815
NCR [Member]
Investment (in shares)	774
Teradata [Member]
Investment (in shares)	774
Vodafone [Member]
Investment (in shares)	6,471
CenturyLink [Member]
Investment (in shares)	4,398
Frontier Communications [Member]
Investment (in shares)	300
Sprint [Member]
Investment (in shares)	40,000
Verizon [Member]
Investment (in shares)	31,904
Windstream [Member]
Investment (in shares)	135