Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Organization and Summary of Significant Accounting Policies (Textual)
Trade accounts receivable, allowance for doubtful accounts	$ 171,000	$ 79,000
Bad debt expense	35,000	199,000
Shipping and handling costs	1,273,000	1,099,000
Advertising and promotion expense	3,050,858	2,658,878
Research and development costs	49,000	42,000
Depreciation expense	1,001,206	884,881
Cost of goods sold	837,478	695,184
Selling and administrative expenses	$ 163,728	$ 189,697