The minimum working capital ratio allowed under the covenant of the debt instrument.

No definition available.

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- Definition

The percent of outstanding principal of debt instrument of anniversary fee.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued during the period as payment of anniversary fees to lenders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of stock issued during the period as payment of anniversary fees to lenders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents working capital ratio.

+ References

No definition available.

+ Details

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- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
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+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 230
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+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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- Details

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Note 9 - Long-term Debt (Details Textual)	2 Months Ended	3 Months Ended		6 Months Ended
Note 9 - Long-term Debt (Details Textual)	Mar. 16, 2021 USD ($)	Jan. 31, 2021 USD ($) shares	Jan. 31, 2020 USD ($)	Jan. 31, 2021 USD ($)	Jan. 31, 2020 USD ($)	Jul. 31, 2020 USD ($)
Amortization of Debt Discount (Premium)				$ 825,695	$ 844,801
Stock Issued During Period, Shares, Credit Facility (in shares) \| shares		1,249,039
Stock Issued During Period, Value, Credit Facility		$ 1,170,000	$ 1,400,000
Percentage of Outstanding Principal of Anniversary Fee		6.50%
Working Capital Ratio				7.4
Credit Agreement [Member]
Amortization of Debt Discount (Premium)		$ 381,828	412,580	$ 825,695	844,801
Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total		368,000	$ 408,889	776,889	$ 817,778
Repayments of Long-term Debt, Total		2,000,000
Long-term Debt, Gross		$ 18,000,000		$ 18,000,000		$ 20,000,000
Debt Instrument, Interest Rate, Stated Percentage		8.00%		8.00%
Debt Instrument, Interest Rate, Effective Percentage		16.48%		16.48%
Debt Instrument, Covenant, Minimum Working Capital Ratio		1		1
Credit Agreement [Member] \| Subsequent Event [Member]
Repayments of Long-term Debt, Total	$ 8,000,000
Long-term Debt, Gross	$ 10,000,000