XML 16 R4.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Mar. 31, 2023
Mar. 31, 2022
Apr. 30, 1998
Statement of Financial Position [Abstract]      
Allowance for doubtful accounts $ 35 $ 39  
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001 $ 0.001
Preferred stock, shares authorized (in shares) 5,000,000 5,000,000  
Preferred stock, shares issued (in shares) 3,000 3,000 250,000
Preferred stock, shares outstanding (in shares) 3,000 3,000  
Preferred stock, liquidation preference (in dollars per share) $ 4 $ 4 $ 4.00
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