Note 11 - Other Information - Summary of Accrued Expenses (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Bonuses	$ 431,545	$ 242,000
Distribution fees	325,675	315,242
Payroll and related expenses	153,261	159,385
Accrued Reserve for Outdated Material	214,897	160,533
Company 401(k) contribution	75,000
Audit fee	35,000	43,668
Insurance	52,894
Annual report expenses	36,179	66,618
Computer services	1,442	16,593
Sales rebates	16,200	15,000
Other	21,673	21,596
Total Accrued Expenses	$ 1,363,766	$ 1,040,635

The carrying value of accrued annual report expenses classified as current liabilities.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for computer services.

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Accrued distribution fees

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Carrying value on reserves for outdated material.

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Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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