Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Reconciliation of Numerators and Denominators used in Computing Basic and Diluted Net Income Per Share

The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income per share:


	12 Month Period Ended December 31, 2018			12 Month Period Ended December 31, 2017			12 Month Period Ended December 31, 2016
Net loss	$	(5,172,436	)	$	(7,759,472	)	$	(6,316,021	)
Cumulative dividends on Series G Preferred Stock		—			—			—

Numerator, basic and diluted net loss available to stockholders	$	(5,172,436	)	$	(7,759,472	)	$	(6,316,021	)


	12 Month Period Ended December 31, 2018			12 Month Period Ended December 31, 2017			12 Month Period Ended December 31, 2016
Denominator:
Shares used in computation – basic:
Weighted average common shares outstanding		8,583,795			8,209,539			7,564,082

Shares used in computation – diluted:
Weighted average common shares outstanding		8,583,795			8,209,539			7,564,082

Net loss per share – basic and diluted	$	(0.60	)	$	(0.95	)	$	(0.84	)

Convertible Preferred Stock Excluded from EPS [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potential common shares from outstanding Convertible Preferred Stock calculated per the if-converted basis having an anti-dilutive effect on diluted earnings per share were excluded from potential common shares as follows:

2018

2017

2016

Excluded Convertible Preferred Stock

—

In the Money Potential Common Shares [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The potential common shares, in the table following, represent potential common shares calculated using the treasury stock method from outstanding options and warrants that were excluded from the calculation of Diluted EPS:


	2018		2017		2016
Average market price during the period	$	6.81	$	3.98	$	3.46
In the money potential common shares from options excluded		13,450		7,023		4,979
In the money potential common shares from warrants excluded		50,640		13,869		—

Out of Money Potential Common Shares [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Potential common shares from out-of-the-money options and warrants were also excluded from the computation of diluted earnings per share because calculation of the associated potential common shares has an anti-dilutive effect. The following table lists options and warrants that were excluded from diluted EPS.


Per share exercise price	2018		2017		2016
Out of the money options excluded:
$ 3.59		—		—		7,521
$12.48		136,833		137,666		137,666
$12.84		4,167		4,167		4,167
$26.40		75,158		75,158		75,158
$34.68		—		—		73,765
$39.00		—		8,333		8,333
$41.16		—		—		833
$42.00		—		—		8,333
$46.80		—		—		1,667

Out-of-the-money warrants excluded:
$ 3.52		—		—		120,000
$ 7.16		700,000		—		—
$12.00		60,625		—		—

Total excluded		981,783		225,324		437,443

Unvested Restricted Stock Awards Excluded from EPS [Member]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The weighted average equivalent common shares relating to our unvested restricted stock awards that were excluded from potential common shares used in the earning per share calculation due to having an anti-dilutive effect are:


	2018		2017		2016
Excluded unvested restricted stock awards		41,667		132,826		113,889