Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ 1,740,180	$ (6,470,196)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	140,989	126,254
Stock-based compensation	371,917	113,635
Change in fair value of warrant liability	0	(208,153)
Changes in operating assets and liabilities:
Accounts receivable	1,288,332	(245,786)
Inventories	(281,617)	(225,089)
Prepaid expenses and other current and long-term assets	609,358	(53,464)
Accounts payable	66,480	24,160
Accrued expenses and compensation	(93,651)	367,295
Increase (Decrease) in Accrued Product Returns	(645,938)	(71,388)
Deferred revenue	0	31,037
Net cash provided by (used in) operating activities	3,196,050	(6,611,695)
Cash flows from investing activities:
Purchases of fixed assets	(130,816)	(37,869)
Net cash used in investing activities	(130,816)	(37,869)
Cash flows from financing activities:
Net proceeds from issuance of stock and warrants	0	6,312,378
Net cash provided by financing activities	0	6,312,378
Net increase (decrease) in cash and cash equivalents	3,065,234	(337,186)
Cash and cash equivalents, beginning of period	4,043,681	3,949,135
Cash and cash equivalents, end of period	7,108,915	3,611,949
Supplemental disclosure of cash flow information:
Change in fair value of warrant liability from repricing	0	244,611
Common stock issued to settle employee incentive compensation obligation	$ 294,264	$ 0