Significant Accounting Policies (Policies)	6 Months Ended
	May 31, 2022
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Statement Presentation The foregoing condensed consolidated financial statements of the Company are unaudited and reflect all adjustments (consisting only of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s financial position and operating results for the interim periods. The financial statements should be read in conjunction with the financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the fiscal year ended November 30, 2021. The results of operations for the three and six months ended May 31, 2022 are not necessarily indicative of the results to be expected for the fiscal year ending November 30, 2022.
Use of Estimates, Policy [Policy Text Block]	Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities and the reported amounts of revenue and expenses during the three months and six months ended May 31, 2022. Actual results could differ from those estimates.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Pronouncements Accounting Pronouncements Not Yet Adopted Measurement of Credit Losses on Financial Instruments In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 adds a current expected credit loss (“CECL”) impairment model to U.S. GAAP that is based on expected losses rather than incurred losses. Modified retrospective adoption is required with any cumulative-effect adjustment recorded to retained earnings as of the beginning of the period of adoption. ASU 2016-13 is effective for fiscal years beginning after December 15, 2022, including interim periods within the year of adoption. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company will adopt ASU 2016-13 in fiscal 2024. The Company does not expect the application of the CECL impairment model to have a significant impact on its allowance for uncollectible amounts for accounts receivable.