Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 4,117,324	$ 7,814,220
Accounts receivable, net	542,420	678,646
Inventory, net	692,368	826,012
Prepaid expenses and other current assets	329,646	566,239
Total current assets	5,681,758	9,885,117
Property and equipment, net	800,723	1,074,710
Goodwill	600,814	637,528
Intangible assets, net	1,620,998	1,888,814
Other noncurrent assets	279,752	270,327
Total assets	8,984,045	13,756,496
Current liabilities
Accounts payable	2,232,563	2,285,792
Accrued compensation and benefits	578,480	1,081,270
Accrued liabilities	1,215,283	920,286
Deferred revenue	37,397	50,925
Short-term notes payable	1,023,815	0
Current maturities of long-term capital lease obligation	184,399	251,800
Total current liabilities	5,271,937	4,590,073
Deferred rent	398,084	352,985
Note payable	0	993,750
Long-term capital lease obligation and other noncurrent liabilities	146,543	328,642
Total liabilities	5,816,564	6,265,450
Commitments (Note 10)
Stockholders' equity
Common stock, $0.01 par value; 200,000,000 shares authorized; 25,304,270 and 12,547,684 shares issued and outstanding at December 31, 2016 and December 31, 2015, respectively	253,042	125,477
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued and outstanding at December 31, 2016 and December 31, 2015, respectively	0	0
Additional paid-in capital	136,199,382	121,490,994
Accumulated other comprehensive income/(loss)	6,176	(1,059)
Accumulated deficit	(133,291,119)	(114,124,366)
Total stockholders’ equity	3,167,481	7,491,046
Total liabilities and stockholders’ equity	$ 8,984,045	$ 13,756,496