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Selling Arrangement (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 31, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2011
Impairment loss $ 0 $ 159,000 $ 0 $ 159,000  
Amortization expense   $ 36,000   $ 97,000  
Selling Arrangement          
Sale agreement to News America         $ 4,000,000
Agreement term period         10 years
Sale agreement description         the Company paid to News America Marketing In-Store, L.L.C. (“News America”) $4,000,000 in exchange for a 10-year arrangement to sell signs with price into News America’s network of retailers as News America’s exclusive agent.