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Significant Accounting Policies (Narrative) (Details)	3 Months Ended								12 Months Ended
Significant Accounting Policies (Narrative) (Details)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 01, 2019 USD ($)
Segment Reporting [Abstract]
Number of operating segments \| segment									1
Net revenues from customers outside the United States	$ 13,678,372	$ 10,371,918	$ 11,580,600	$ 11,902,747	$ 13,497,906	$ 8,492,530	$ 10,163,724	$ 8,587,605	$ 47,533,637	$ 40,741,765	$ 41,150,131
Operating lease right-of-use assets	2,960,569								2,960,569			$ 3,600,000
Present value of lease liabilities	2,996,903								2,996,903			$ 3,800,000
Distribution costs									794,317	618,756	621,142
Advertising costs									2,690,280	2,219,074	2,589,185
Product Sales Related Allowances - Chargebacks, Cash Discounts and Damaged Goods
Segment Reporting [Abstract]
Accounts receivable, allowances, current	$ 800,000				$ 900,000				800,000	900,000
Non-US
Segment Reporting [Abstract]
Net revenues from customers outside the United States									$ 1,500,000	$ 2,100,000	$ 1,600,000