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Consolidated Balance Sheets (Parenthetical) - shares
Sep. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Common Stock [Member]      
Common stock, shares authorized 100,000,000 100,000,000 100,000,000
Common stock, shares issued 24,607,384 24,514,867 24,514,867
Common stock, shares outstanding 24,607,384 24,514,867 24,514,867
Series A Junior Participating Preferred Stock [Member]      
Preferred stock, shares authorized 500,000 500,000 500,000
Preferred stock, shares issued 0 0 0
Preferred stock, shares outstanding   0 0