Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Schedule of Revenue Disaggregated by Type

	Three Months Ended September 30				Nine Months Ended September 30,
	2020		2019		2020		2019
Systems	$	2,953,005	$	1,696,964	$	2,965,774	$	1,755,015
Disposables, service and accessories		5,504,048		6,258,252		16,099,915		19,515,125
Sublease		246,530		246,532		739,590		739,593
Total revenue	$	8,703,583	$	8,201,748	$	19,805,279	$	22,009,733

Summary of Contract Assets and Liabilities

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

	September 30, 2020			December 31, 2019
Contract Assets - unbilled receivables	$	200,134		$	168,445
Customer deposits		162,240			-
Product shipped, revenue deferred		929,458			674,324
Deferred service and license fees		5,667,573			4,972,389
Total deferred revenue		6,759,271			5,646,713
Less: Long-term deferred revenue		(569,475	)		(554,258	)
Total current deferred revenue	$	6,189,796		$	5,092,455

Schedule of Computation of Basic and Diluted Earnings Per Share

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Net income (loss)	$	(1,572,972	)	$	43,748		$	(5,465,609	)	$	(3,506,790	)
Cumulative dividend on convertible preferred stock		(343,101	)		(360,647	)		(1,028,950	)		(1,071,351	)
Net loss attributable to common stockholders	$	(1,916,073	)	$	(316,899	)	$	(6,494,559	)	$	(4,578,141	)
Weighted average number of common shares and equivalents:		74,488,771			64,294,153			72,004,956			61,405,083
Basic EPS	$	(0.03	)	$	(0.00	)	$	(0.09	)	$	(0.07	)
Diluted EPS	$	(0.03	)	$	(0.00	)	$	(0.09	)	$	(0.07	)