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Equity (Details Narrative) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Equity [Abstract]        
Number of shares purchased and retired, shares 0 132,719 74,659 465,390
Number of shares purchased and retired, value $ 0 $ 2,000,000.0 $ 1,800,000 $ 8,500,000
Share price, per share $ 0.04 $ 0.04 $ 0.08 $ 0.07
Cash dividend $ 360,000 $ 368,000 $ 720,000 $ 647,000