Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net loss	$ (4,506,180)	$ (2,595,173)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	168,440	106,133
Loss on disposal of property and equipment	6,068	0
Noncash interest expense	1,042	17,123
Share-based compensation	261,497	590,603
Inventory obsolescence	15,034	3,604
Change in fair value of derivative financial instruments	0	(31,831)
Changes in operating assets and liabilities, net of effects of acquisition:
Accounts receivable	39,411	411,999
Inventory	(112,883)	45,331
All other assets	199,182	(25,854)
Accounts payable	(80,276)	(319,483)
Accrued compensation and other liabilities	211,979	145,016
Deferred revenue	869	(64,619)
Net cash used in operating activities	(3,795,817)	(1,717,151)
Cash flows from investing activities
Purchases of property and equipment (net of proceeds on disposals)	(1,644)	(10,034)
Net cash used in investing activities	(1,644)	(10,034)
Cash flows from financing activities
Proceeds from issuance of convertible notes and warrants, net of issuance costs	0	1,388,913
Proceeds from issuance of promissory notes, net of issuance costs	0	500,000
Proceeds from exercise of stock options and warrants	9,271	55
Proceeds from initial public offering, net of issuance costs paid in 2015	0	(252,715)
Payments on debt	0	(1,250)
Payments on capital lease obligations	(63,327)	(25,640)
Net cash provided by (used in) financing activities	(54,056)	1,609,363
Effects of exchange rates on cash	5,254	0
Net decrease in cash and cash equivalents	(3,846,263)	(117,822)
Cash and cash equivalents at beginning of period	7,814,220	749,517
Cash and cash equivalents at end of period	3,967,957	631,695
Supplemental disclosure of cash flow information
Cash paid during the period for interest	13,021	6,865
Supplemental disclosure of noncash investing and financing activities:
Acquisition of equipment purchased through capital leases	0	76,745
Property and equipment purchased on credit	27,767	0
Deferred and accrued financing costs	52,210	218,656
Convertible Debt [Member]
Supplemental disclosure of noncash investing and financing activities:
Exchange of demand note for convertible debt	$ 0	$ 300,000