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Organization and Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable and Allowance for Doubtful Accounts
Accounts receivable, allowance for doubtful accounts	$ 69,093	$ 42,443
Advertising and Marketing
Advertising and marketing costs	$ 155,983	$ 123,451	$ 118,975
Employees
Stock Based Compensation
Requisite service period for recognizing stock based compensation expenses associated with employee stock options	4 years
Board of directors
Stock Based Compensation
Requisite service period for recognizing stock based compensation expenses associated with employee stock options	2 years
Patent
Intangible Assets
Estimated useful lives of intangible assets	17 years
United States
Revenue
Payment term to U.S. customers	45 days
International
Revenue
Payment term of remaining amount to international distributors	30 days
Minimum
Revenue
Extended warranty agreement period	1 year
Term of customer-specified acceptance provisions	30 days
Minimum | Computer software and hardware
Property and Equipment
Estimated useful lives of assets	3 years
Minimum | Furniture and fixtures
Property and Equipment
Estimated useful lives of assets	5 years
Minimum | Machinery and equipment
Property and Equipment
Estimated useful lives of assets	5 years
Maximum
Revenue
Extended warranty agreement period	4 years
Term of customer-specified acceptance provisions	60 days
Stock Based Compensation
Contractual life of stock options	10 years
Maximum | Computer software and hardware
Property and Equipment
Estimated useful lives of assets	5 years
Maximum | Furniture and fixtures
Property and Equipment
Estimated useful lives of assets	7 years
Maximum | Machinery and equipment
Property and Equipment
Estimated useful lives of assets	7 years

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