(9) Net Loss Per Common Share

The calculation of basic and diluted loss per common share and common share equivalents is as follows (in thousands except for per share data):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Basic net loss per common share
Net loss	$	(376	)	$	(2,268	)	$	(1,817	)	$	(3,911	)
Add: Excess of carrying value of Series C Preferred Stock over redemption value		459			—			459			—
Less: Preferred stock dividends		(7	)		(7	)		(14	)		(14	)
Net income (loss) applicable to common stock	$	76		$	(2,275	)	$	(1,372	)	$	(3,925	)
Basic weighted average number of common shares outstanding		10,803			10,789			10,803			10,789
Basic net income (loss) per common share	$	0.01		$	(0.21	)	$	(0.13	)	$	(0.36	)
Diluted loss per common share
Net loss applicable to common stock	$	76		$	(2,275	)	$	(1,372	)	$	(3,925	)
Less: Excess of carrying value of Series C Preferred Stock over redemption value		(459	)		—			—			—
Add: Preferred stock dividends		7			—			—			—
Net loss applicable to dilutive common stock	$	(376	)	$	(2,275	)	$	(1,372	)	$	(3,925	)
Basic weighted average number of common shares outstanding		10,803			10,789			10,803			10,789
Effect of dilutive securities
Dilutive stock awards		40			—			—			—
Dilutive preferred share conversions		111			—			—			—
		151			—			—			—
Diluted weighted average number of common shares outstanding		10,954			10,789			10,803			10,789
Diluted net loss per common share	$	(0.03	)	$	(0.21	)	$	(0.13	)	$	(0.36	)

Basic net loss per common share is computed by dividing the net loss, less preferred dividends and adding the excess of carrying value of Series C Preferred Stock over redemption value recognized on the conversion of the Series C Preferred Stock, by the weighted-average number of shares of common stock outstanding during a period. The diluted loss per common share calculation gives effect to dilutive options, convertible preferred stock, and other potential dilutive common stock including restricted shares of common stock outstanding during the period. Diluted net loss per share is based on the treasury stock method and includes the effect from potential issuance of common stock, such as shares issuable pursuant to the exercise of stock options, assuming the exercise of all in-the-money stock options. Common share equivalents have been excluded where their inclusion would be anti-dilutive.

Shares to be issued upon the exercise of the outstanding options, performance-based restricted stock units, convertible preferred stock, and selected restricted shares of common stock excluded from the income per share calculation amounted to 2.4 million and 1.5 million in each of the three month and six month periods ended June 30, 2017 and 2016, respectively, because the awards were anti-dilutive.