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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2023
Mar. 31, 2022
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 35 $ 39
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000
Preferred stock, shares issued (in shares) 3,000 3,000
Preferred stock, shares outstanding (in shares) 3,000 3,000
Preferred stock, liquidation preference (in dollars per share) $ 4 $ 4
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 21,084,000 20,979,000
Common stock, shares outstanding (in shares) 21,084,000 20,979,000