Facility fee, expressed as a percentage of the average daily unused portion of the revolving credit line.

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Long term debt and stockholders equity.

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Cash payment for settlement of stock options.

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Variable rate mortgage interest rate description.

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Area of a real estate property.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

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Amount of the required periodic payments including both interest and principal payments.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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Number of new stock issued during the period.

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Debt and Shareholders' Equity (Details Narrative)		3 Months Ended	6 Months Ended
Debt and Shareholders' Equity (Details Narrative)	Oct. 26, 2017 USD ($) ft²	Jun. 30, 2021 USD ($) shares	Jun. 30, 2021 USD ($) shares	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Oct. 26, 2017 a
Long Term Debt And Stockholders Equity [Line Items]
Outstanding borrowings under revolving loan agreement		$ 39,550,000,000	$ 39,550,000,000		$ 38,767,000,000
Aggregate proceeds from exercise of employee stock options		2,517,000	2,698,000
Cash settlement of stock options		$ 211,000	$ 211,000	$ 560,000
Common Stock
Long Term Debt And Stockholders Equity [Line Items]
Issuance of common stock (shares) \| shares		172,594	190,295
HSBC Bank
Long Term Debt And Stockholders Equity [Line Items]
Credit facility borrowing capacity		$ 50,000,000	$ 50,000,000
Credit facility interest rate			Prime Rate less 1.25%
Credit facility expiration date			May 24, 2023
Facility fee per annum			20.00%
HSBC Bank \| Prime Rate
Long Term Debt And Stockholders Equity [Line Items]
Interest rate			1.25%
First Aid Only Distribution Center
Long Term Debt And Stockholders Equity [Line Items]
Covenant terms and compliance			Under the revolving loan agreement, the Company is required to maintain specific amounts of tangible net worth, a specified debt to net worth ratio and a fixed charge coverage ratio and must have annual net income greater than zero, measured as of the end of each fiscal year. As of June 30, 2021, the Company was in compliance with the covenants then in effect under the loan agreement
Purchase price	$ 4,000,000.0
Area of real estate property	53,000					2.86
Variable rate mortgage interest rate			interest rate of LIBOR plus 2.5%
Monthly payment	$ 22,222
Mortgage maturity date			October 31, 2024
First Aid Only Distribution Center \| LIBOR Rate
Long Term Debt And Stockholders Equity [Line Items]
Interest rate	2.50%