Stock-Based Awards and Per Share Information (Tables)

3 Months Ended

Mar. 31, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Income Statement Classification of Compensation Expense

The following table summarizes the income statement classification of compensation expense associated with share-based payments (in thousands):

	Three Months Ended
	March 31,
	2016		2015
Cost of revenue	$	70	$	76
Sales and marketing		134		293
General and administrative		551		236
Engineering and development		79		95
	$	834	$	700

Assumptions on Estimation of Stock Option Fair Values

The stock option fair values, under the 2002 Plan, were estimated using the Black-Scholes option-pricing model with the following assumptions:

	Three Months Ended
	March 31,
	2016		2015
Expected term	6.3 years		7.2 years
Volatility	88.30%		89.90%
Annual dividend per share	$	—	$	—
Risk-free interest rate	1.42%		1.78%

Summary of Option Activity

A summary of option activity under the 2002 Plan for the three months ended March 31, 2016 is as follows:

						Weighted Average
				Weighted		Remaining		Aggregate
				Average		Contractual		Intrinsic
	Shares			Exercise Price		Term (Years)		Value(1)
Options outstanding, December 31, 2015		4,493,000		$	2.72		6.59	$	422
Granted at fair market value		295,000		$	0.86
Exercised		—		$	—
Forfeited, cancelled, or expired		(283,000	)	$	2.87
Options outstanding at March 31, 2016		4,505,000		$	2.59		6.81	$	169,000
Options exercisable at March 31, 2016		2,932,000		$	2.89		5.92	$	38,000
Vested options expired during the quarter    ended March 31, 2016		48,000		$	2.38

(1) The intrinsic value calculation does not include negative values. This can occur when the fair market value on the reporting date is less than the exercise price of the grant.

Cash Proceeds, Along With Fair Value Disclosures Related to Grants, Exercises, and Vesting Options

Cash proceeds, along with fair value disclosures related to grants, exercises, and vested options under the 2002 Plan are as follows for the three months ended March 31 (in thousands, except per share amounts):

	Three Months Ended
	March 31,
	2016		2015
Proceeds from stock options exercised	$	—	$	44
Tax benefit related to stock options    exercised (1)	N/A		N/A
Intrinsic value of stock options exercised (2)	$	—	$	52
Weighted-average fair value of options granted    during period	$	0.67	$	1.88
Total fair value of shares vested during    the period	$	708	$	293

(1) Excess tax benefits received related to stock option exercises are presented as financing cash inflows. The Company currently does not receive a tax benefit related to the exercise of stock options due to the Company’s net operating losses.

(2) The intrinsic value of stock options exercised is the amount by which the market price of the stock on the date of exercise exceeded the market price of the stock on the date of grant.

Summary of Nonvested Restricted Stock Units

A summary of option activity under the 2002 Plan for the three months ended March 31, 2016 is as follows:

				Weighted
				Average Grant
	Shares			Date Fair Value
Nonvested restricted stock units at December 31, 2015		870,000		$	1.64
Granted		658,000		$	0.90
Vested		(30,000	)	$	0.86
Forfeited or cancelled		—		$	—
Nonvested restricted stock units at March 31, 2016		1,498,000		$	0.90

Summary of Warrant Activity

A summary of warrant activity for the three months ended March 31, 2016 is as follows:

Warrants Outstanding:
			Weighted
			Average
	Shares		Exercise Price
Warrants outstanding, December 31, 2015		10,094,000	$	4.18
Granted		—
Exercised		—
Forfeited, cancelled, or expired		—
Warrants outstanding at March 31, 2016		10,094,000	$	4.18
Warrants exercisable at March 31, 2016		9,959,000	$	4.18
Vested warrants expired during the quarter    ended March 31, 2016		—	N/A