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Unaudited Condensed Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income (loss)	$ (4,296,138)	$ 314,970
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation	266,455	222,459
Amortization	338,692	321,804
Amortization of discounts on investments, net	(53,273)
Stock-based compensation	2,127,858	249,888
Deferred tax liability	19,292	21,331
Gain on deferred purchase price liability	(388,733)
Changes in operating assets and liabilities:
Trade accounts receivable	1,201,412	(2,358,425)
Inventory	(52,317)	(29,655)
Prepaid expenses and other assets	(17,415)	(163,428)
Accounts payable	131,985	82,616
Accrued bonus	(726,062)	(549,601)
Accrued liabilities	(78,509)	174,188
Deferred obligation under operating lease	(51,937)	(61,477)
Net cash used in operating activities	(1,578,690)	(1,775,330)
Cash flows from investing activities:
Cash paid for acquisition		(6,348,730)
Purchases of available-for-sale securities	(12,650,298)
Maturities of available-for-sale securities	15,179,967
Purchases of property and equipment	(652,806)	(169,931)
Net cash provided by (used in) investing activities	1,876,863	(6,518,661)
Cash flows from financing activities:
Repayment of notes payable	(666,666)	(721,896)
Payment on deferred purchase price liability	(375,000)
Reversal of costs related to initial public offering		781
Common stock repurchases	(1,323,173)
Proceeds from exercise of stock options	299,955	436,695
Net cash used in financing activities	(2,064,884)	(284,420)
Net decrease in cash and cash equivalents	(1,766,711)	(8,578,411)
Cash and cash equivalents, beginning of period	15,026,068	45,161,403
Cash and cash equivalents, end of period	13,259,357	36,582,992
Supplemental disclosure of cash flow information
Interest paid	26,713	$ 60,934
Taxes paid	$ 18,213

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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The cash outflow for a borrowing supported by a written promise to pay an obligation.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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