oss) Per Share

Basic income (loss) per share is computed by dividing net loss for the period by the weighted average number of shares of common stock outstanding during that period. The diluted income (loss) per share calculation gives effect to dilutive stock options, warrants, convertible preferred stock, convertible notes and other potentially dilutive common stock equivalents outstanding during the period. Diluted income (loss) per share is based on the if-converted method or the treasury stock method, as applicable, and includes the effect from the potential issuance of common stock, such as shares issuable pursuant to the conversion of convertible preferred stock, convertible notes and the exercise of stock options and warrants, assuming the exercise of all "in-the-money" common stock equivalents based on the average market price during the period. Common stock equivalents have been excluded where their inclusion would be anti-dilutive.

Details in the computation of basic and diluted income (loss) per share is as follows:



	Three months ended September 30,						Nine months ended September 30,
($ in thousands except share and per share data)	2019			2018			2019			2018
Income (loss) per share - basic:
Net income (loss)	$	(7,204	)	$	(2,859	)	$	873		$	(8,654	)
Less: Dividend paid in-kind to preferred stockholders	(89		)	(85		)	(260		)	(250		)
Less: Deemed dividend on preferred stock	(150		)	(130		)	(435		)	(377		)
Net income (loss) attributable to common stockholders - basic	$	(7,443	)	$	(3,074	)	$	178		$	(9,281	)

Numerator for basic income (loss) per share	$	(7,443	)	$	(3,074	)	$	178		$	(9,281	)
Denominator for basic income (loss) per share	9,758,332			9,234,869			9,758,332			7,107,678
Basic income (loss) per common share	$	(0.76	)	$	(0.33	)	$	0.02		$	(1.31	)

Income (loss) per share - diluted:
Numerator for basic income (loss) per share	$	(7,443	)	$	(3,074	)	$	178		$	(9,281	)
Adjustments: none	—			—			—			—
Net income (loss) attributable to common stockholders - diluted	$	(7,443	)	$	(3,074	)	$	178		$	(9,281	)

Denominator for basic income (loss) per share	9,758,332			9,234,869			9,758,332			7,107,678
Plus: Incremental shares underlying “in the money” stock options outstanding	—			—			18,556			—
Denominator for diluted income (loss) per share	9,758,332			9,234,869			9,776,888			7,107,678
Diluted net income (loss) per common share	$	(0.76	)	$	(0.33	)	$	0.02		$	(1.31	)

The following potentially dilutive securities have been excluded from the computations of diluted weighted-average shares outstanding, as their effect would be anti-dilutive:



	Three months ended September 30,		Nine months ended September 30,
	2019	2018	2019	2018
“In the money” stock options	34,534	—	—	36,000
“Out of the money” stock options	285,259	289,514	285,259	253,514
“In the money” warrants	—	—	—	958,152
“Out of the money” warrants	7,392,966	7,497,642	7,392,966	6,539,490
Shares underlying convertible notes	1,056,068	1,056,068	1,056,068	1,056,068
Shares underlying convertible accrued interest on convertible notes	136,936	90,472	136,936	90,472
Shares underlying convertible preferred stock	760,000	728,000	760,000	728,000