Accounting Changes [Text Block] | NOTE B — CHANGE IN ACCOUNTING PRINCIPLE Effective April 1, 2018, first 10 March 31, 2018, three nine December 31, 2017 nine December 31, 2017 April 1, 2017 $4,418,318 As Originally Reported Effect of Change As Adjusted Consolidated Statement of Operations, Three Months Ended December 31, 2017 Cost of goods sold 26,364,387 (55,400 ) 26,308,987 Income tax provision 542,909 17,058 559,967 Net earnings 122,929 38,342 161,271 Net earnings per share: Basic 0.02 - 0.02 Diluted 0.02 - 0.02 Consolidated Statement of Operations, Nine Months Ended December 31, 2017 Cost of goods sold 72,884,773 (458,528 ) 72,426,245 Income tax provision 748,674 141,181 889,855 Net earnings 603,588 317,347 920,935 Net earnings per share: Basic 0.09 0.04 0.13 Diluted 0.09 0.04 0.13 Consolidated Statement of Cash Flows, Nine Months Ended December 31, 2017 Net earnings 603,588 317,347 920,935 Change in inventories (11,480,885 ) (458,528 ) (11,939,413 ) Change in deferred income taxes 702,222 108,483 810,705 Change in income taxes payable - 32,698 32,698 Consolidated Balance Sheet, as of March 31, 2018 Inventories 38,039,332 7,290,102 45,329,434 Deferred income tax liability 103,198 1,768,968 1,872,166 Retained earnings 31,190,246 5,521,134 36,711,380 The following table shows the effect of the change in accounting principle from LIFO to average cost on the three nine December 31, 2018: As Computed Under LIFO As Computed Under Average Cost Effect of Change Consolidated Statement of Operations, Three Months Ended December 31, 2018 Earnings before income taxes 2,233,044 880,867 (1,352,177 ) Income tax provision 545,478 216,094 (329,384 ) Net earnings 1,687,567 664,773 (1,022,794 ) Net earnings per share: Basic 0.24 0.09 (0.15 ) Diluted 0.24 0.09 (0.15 ) Consolidated Statement of Operations, Nine Months Ended December 31, 2018 Earnings before income taxes 5,782,409 8,289,004 2,506,595 Income tax provision 1,412,796 2,023,422 610,626 Net earnings 4,369,614 6,265,582 1,895,968 Net earnings per share: Basic 0.62 0.89 0.27 Diluted 0.62 0.89 0.27 |