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Note O - Supplemental Cash Flow Information (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 30, 2022
Jun. 30, 2022
Dec. 31, 2023
Dec. 31, 2022
Interest Paid, Including Capitalized Interest, Operating and Investing Activities     $ 2,100 $ 1,300
Income Taxes Paid, Net     $ 2,800 $ 400
Plateplus Inc. [Member]        
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) 516,041     516,041
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable   $ 4,784   $ 4,800