Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ (1,311,684)	$ 1,740,180
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	107,494	140,989
Stock-based compensation	64,026	371,917
Inventory Write-down	2,595,884	0
Changes in operating assets and liabilities:
Accounts receivable	356,287	1,288,332
Inventories	(1,207,451)	(281,617)
Prepaid expenses and other current and long-term assets	(239,749)	609,358
Accounts payable	(287,260)	66,480
Accrued expenses	416,745	(93,651)
Increase (Decrease) in Accrued Product Returns	(360,051)	(645,938)
Increase (Decrease) in Contract with Customer, Liability	(1,956,522)	0
Net Cash Provided by (Used in) Operating Activities	(1,822,281)	3,196,050
Cash flows from investing activities:
Purchases of fixed assets	(7,587)	(130,816)
Net Cash Provided by (Used in) Investing Activities	(7,587)	(130,816)
Cash flows from financing activities:
Net proceeds from issuance of stock and warrants	7,497	0
Net Cash Provided by (Used in) Financing Activities	7,497	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(1,822,371)	3,065,234
Cash and cash equivalents, end of period	4,958,058
Supplemental disclosure of cash flow information:
Common stock issued to settle employee incentive compensation obligation	0	294,264
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 4,958,058	$ 7,108,915