Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Schedule of Revenue Disaggregated by Type

	Three Months Ended March 31,
	2019		2018
Systems	$	58,051	$	17,275
Disposables, service and accessories		6,710,759		6,954,357
Sublease		241,065		—
Total revenue	$	7,009,875	$	6,971,632

Summary of Contract Assets and Liabilities

The following information summarizes the Company’s contract assets and liabilities:

	March 31, 2019			December 31, 2018
Contract Assets - Unbilled Receivables	$	268,711		$	251,867
Customer deposits		428,595			487,086
Product shipped, revenue deferred		645,199			645,199
Deferred service and license fees		4,976,628			5,100,402
Total deferred revenue		6,050,422			6,232,687
Less: Long-term deferred revenue		(404,607	)		(407,151	)
Total current deferred revenue	$	5,645,815		$	5,825,536

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted EPS:

	Three months ended March 31,
	2019			2018
Net income (loss)	$	(2,122,820	)	$	1,435,229
Cumulative dividend on convertible preferred stock		(353,510	)		(353,589	)
Net loss attributable to convertible preferred stock		—			(610,280	)
Net income (loss) attributable to common stockholders	$	(2,476,330	)	$	471,360
Share used for basic EPS-weighted average shares		59,196,652			30,957,648
Restricted Stock Units		—			292,891
Warrants		—			1,872,059
Weighted average number of common shares and equivalents:		59,196,652			33,122,598
Basic EPS	$	(0.04	)	$	0.02
Diluted EPS	$	(0.04	)	$	0.01