Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 11,187,129	$ 749,517
Accounts receivable, net	553,938	503,983
Inventory, net	1,155,488	369,742
Prepaid expenses and other current assets	538,312	90,233
Total current assets	13,434,867	1,713,475
Property and equipment, net	1,021,971	587,956
Deferred IPO issuance costs	0	296,041
Intangible assets, net	1,955,769	0
Goodwill	291,747	0
Other noncurrent assets	293,135	57,459
Total assets	16,997,489	2,654,931
Current liabilities
Accounts payable	1,274,657	1,160,081
Accrued compensation and benefits	840,637	423,099
Accrued liabilities	1,232,328	993,657
Deferred revenue	158,860	339,171
Short-term notes payable	1,250	1,505,000
Current maturities of long-term capital lease obligations	227,049	100,499
Short-term convertible notes, net of discounts	0	1,500,000
Total current liabilities	3,734,781	6,021,507
Note payable	1,000,000	0
Long-term capital lease obligations and other noncurrent liabilities	317,854	134,149
Total liabilities	$ 5,052,635	6,155,656
Commitments and contingencies (Note 10)
Redeemable convertible preferred stock
Redeemable convertible preferred stock	$ 0	4,564,899
Stockholders' equity (deficit)
Common stock, $.01 par value; 200,000,000 shares authorized; 12,539,704 and 493,178 shares issued and outstanding at September 30, 2015 and December 31, 2014, respectively	125,397	4,932
Additional paid-in capital	121,216,140	88,701,737
Accumulated other comprehensive loss	(49)	0
Accumulated deficit	(109,396,634)	(96,772,293)
Total stockholders' equity (deficit)	11,944,854	(8,065,624)
Total liabilities, redeemable preferred stock and stockholders' equity (deficit)	16,997,489	2,654,931
Series A Convertible Redeemable Preferred Stock
Redeemable convertible preferred stock
Redeemable convertible preferred stock	$ 0	$ 4,564,899