Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Schedule of Revenue Disaggregated by Type

Other recurring revenue represented 52% and 44% of revenue for the nine months ended September 30, 2018 and 2017, respectively.

	Three months ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Systems	$	715,484	$	1,597,537	$	1,043,510	$	3,644,871
Disposables, service and accessories		6,839,995		6,546,198		21,035,002		19,943,562
Total revenue	$	7,555,479	$	8,143,735	$	22,078,512	$	23,588,433

Summary of Contract Assets and Liabilities

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

	September 30,			December 31,
	2018			2017
Contract Assets - Unbilled Receivables	$	139,973		$	2,917
Product shipped, revenue deferred		661,402			941,724
Deferred service and license fees		6,207,167			5,372,908
Total deferred revenue		6,868,569			6,314,632
Less: Long-term deferred revenue		(502,893	)		(611,863	)
Total current deferred revenue	$	6,365,676		$	5,702,769

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,
	2018			2017			2018			2017
Net income (loss)	$	(116,295	)	$	(4,334,322	)	$	686,730		$	(3,334,653	)
Cumulative dividend on convertible preferred stock		(361,447	)		(337,963	)		(1,072,553	)		(1,070,812	)
Net loss attributable to common stockholders	$	(477,742	)	$	(4,672,285	)	$	(385,823	)	$	(4,405,465	)
Weighted average number of common shares and equivalents:		59,008,219			22,750,405			49,733,553			22,551,496
Basic EPS	$	(0.01	)	$	(0.21	)	$	(0.01	)	$	(0.20	)
Diluted EPS	$	(0.01	)	$	(0.21	)	$	(0.01	)	$	(0.20	)