Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities
Net loss	$ (1,957,220)	$ (4,476,200)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation	259,895	276,346
Loss on disposal of property and equipment	0	1,213
Stock-based compensation expense	957,711	583,847
Stock issued for services	71,250	0
Write-off of deferred financing costs	67,664	86,736
Amortization of deferred rent related to lease incentives	(95,249)	(95,248)
Amortization of debt discount	155,996	124,797
Accretion and amortization on available for sale investments	0	1,792
Loss from equity-method investment in SAVSU	707,208	0
(Increase) Decrease in
Accounts receivable, trade	(159,851)	(381,717)
Inventories	(103,274)	(69,124)
Prepaid expenses and other current assets	(101,479)	(29,692)
Increase (Decrease) in
Accounts payable	(227,732)	361,900
Accrued compensation and other current liabilities	138,885	(107,586)
Accrued interest	152,143	39,524
Deferred rent	(63,836)	24,541
Net cash used in operating activities	(197,889)	(3,658,871)
Cash flows from investing activities
Sales of available-for-sale investments	0	1,650,000
Costs associated with internal use software development	0	(857,453)
Purchase of property and equipment	(91,443)	(130,118)
Net cash provided by (used in) investing activities	(91,443)	662,429
Cash flows from financing activities
Proceeds from related party debt	1,000,000	2,000,000
Payments on equipment loan	(10,628)	0
Payments on capital lease obligations	(7,631)	0
Payments related to preferred stock issuance	(9,303)	0
Proceeds from exercise of common stock options and warrants	784,273	278,503
Deferred costs related to potential stock issuance	(42,664)	(86,736)
Net cash provided by financing activities	1,714,047	2,191,767
Net increase (decrease) in cash and cash equivalents	1,424,715	(804,675)
Cash and cash equivalents - beginning of period	1,405,826	2,173,258
Cash and cash equivalents - end of period	2,830,541	1,368,583
Non-cash investing and financing activities
Costs incurred for capitalized internal use software not paid as of quarter end (amounts are included in liabilities)	0	109,500
Stock issued for services provided in prior period included in liabilities at year-end	35,624	0
Preferred stock dividends accrued	106,250	0
Capital lease obligations incurred for purchases of equipment	52,327	0
Purchase of equipment with debt	39,243	0
Debt discount related to warrants	0	374,390
Series A Preferred Stock [Member]
Non-cash investing and financing activities
Preferred stock issued on conversion of related party note payable and accrued interest	$ 4,250,000	$ 0