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Consolidated Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
$ in Thousands
Jul. 31, 2019
Apr. 30, 2019
Short term investments $ 3,080 $ 5,617
Allowance for doubtful accounts $ 24 $ 22
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, shares authorized (in shares) 30,000,000 30,000,000
Common stock, shares issued (in shares) 10,000,000 10,000,000
Treasury stock, shares (in shares) [1],[2] 340,296 336,439 [3]
[1] Includes 207,047 shares that were acquired during the $3 million repurchase program which was authorized in September 2012 and expired in October 2018.
[2] Includes 25,773 shares that were acquired during the $2 million repurchase program which was authorized in October 2018.
[3] Includes 85,219 shares that were acquired during the former repurchase program which was authorized in January 2011 and expired in January 2012; 18,400 shares were acquired prior to January 2011.