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Schedule II - Valuation and Qualifying Accounts (Details Textual) - USD ($) | 12 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Accounts Receivable, Credit Loss Expense (Reversal) | $ 53,239 | $ 15,673
Cash Discounts Allowed on Sales and Charged Against Revenue | 624,413 | 750,059
Accounts Receivable, Allowance for Credit Loss, Writeoff | 0 | 7,547
Cash Discount on Sales | $ 624,413 | $ 750,059

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- Definition The amount of cash discount allowed on sales and charged against revenue. + References No definition available. + Details
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- Definition Amount of direct write-downs of accounts receivable charged against the allowance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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