Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Schedule of Revenue Disaggregated by Type

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Systems	$	1,696,964	$	715,484	$	1,755,015	$	1,043,510
Disposables, service and accessories		6,258,252		6,839,995		19,515,125		21,035,002
Sublease		246,532		-		739,593		-
Total revenue	$	8,201,748	$	7,555,479	$	22,009,733	$	22,078,512

Summary of Contract Assets and Liabilities

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

	September 30, 2019			December 31, 2018
Contract Assets - Unbilled Receivables	$	314,494		$	251,867
Customer deposits		41,860			487,086
Product shipped, revenue deferred		645,199			645,199
Deferred service and license fees		5,157,232			5,100,402
Total deferred revenue		5,844,291			6,232,687
Less: Long-term deferred revenue		(560,508	)		(407,151	)
Total current deferred revenue	$	5,283,783		$	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 September 30,						Nine Months Ended September 30,
	2019			2018			2019			2018
Net income (loss)	$	43,748		$	(116,295	)	$	(3,506,790	)	$	686,730
Cumulative dividend on convertible preferred stock		(360,647	)		(361,447	)		(1,071,351	)		(1,072,553	)
Net loss attributable to common stockholders	$	(316,899	)	$	(477,742	)	$	(4,578,141	)	$	(385,823	)
Weighted average number of common shares and equivalents:		64,294,153			59,008,219			61,405,083			49,733,553
Basic EPS	$	(0.00	)	$	(0.01	)	$	(0.07	)	$	(0.01	)
Diluted EPS	$	(0.00	)	$	(0.01	)	$	(0.07	)	$	(0.01	)