Stock Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Stock based compensation

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

The following summary information reflects stock options outstanding, vested and expected to vest, and related details as of June 30, 2014:

	Stock Options Outstanding				Options Exercisable
Exercise Price	Number Outstanding (000's)	Weighted Average Remaining Contractual Term (in years)	Weighted Average Exercise Price		Vested and Expected to Vest (000's)	Weighted Average Exercise Price
$1.30	18	1.4	$	1.30	18	$	1.30
$1.31 - $3.99	379	5.6	$	3.93	351	$	3.93
$4.00 - $4.30	490	8.8	$	4.13	414	$	4.12
$4.31 - $4.99	97	5.2	$	4.65	82	$	4.69
$5.00 - $7.62	315	7.5	$	6.67	315	$	6.67
Total	1,298	7.2	$	4.78	1,180	$	4.74

Summary of employee stock options activity

Activity with respect to employee stock options is summarized as follows: 

	Number of Shares (000's)		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term(in years)	Aggregate Intrinsic Value (in 000’s)
Outstanding, December 31, 2013	1,804		$	4.54
Granted	55		$	4.23
Exercised	(72	)	$	3.59
Unvested options forfeited or cancelled	(349	)	$	4.26
Vested options expired	(141	)	$	4.23
Outstanding, June 30, 2014	1,298		$	4.69	7.2	$	262
Vested at June 30, 2014	595		$	4.78	5.8	$	134
Vested or expected to vest at June 30, 2014 (a)	1,180		$	4.78	7.0	$	242

^(a) Includes forfeiture adjusted unvested shares.

Summary of restricted stock activity

Activity with respect to restricted stock is summarized as follows: 

	Number of Shares (000's)		Weighted Avg. Grant Date Fair Value
Unvested at December 31, 2013	314		$	3.31
Granted	—		$	—
Vested	(10	)	$	4.34
Forfeited	—		$	—
Unvested at June 30, 2014	304		$	3.28

Schedule of assumptions used in calculating the fair value of warrants granted using the Black Sholes Merton option-pricing model

The assumptions used in calculating the fair value of non-employee common stock options and warrants granted during the six months ended June 30, 2014 and 2013, using the Black-Scholes-Merton option-pricing model are set forth in the following table:

	Six Months Ended June 30,
	2014		2013
Expected volatility	51.0	%	n/a
Expected life (in years)	5.0		n/a
Expected dividend yield	—		n/a
Risk-free interest rate	1.74	%	n/a

Summary of recognized stock based compensation

For the three and six months ended June 30, 2014 and 2013, the Company recognized stock-based compensation as follows: 

	Three Months Ended June 30,				Six Months Ended June 30,
(Amounts in 000’s)	2014		2013		2014		2013
Employee compensation:
Stock options	$	7	$	154	$	189	$	288
Employee warrants	48		35		90		60
Management restricted stock	68		8		102		17
Total employee stock-based compensation expense	$	123	$	197	$	381	$	365
Non-employee compensation
Board restricted stock	$	42	$	67	$	226	$	133
Board stock options	61		27		121		53
Subtotal non-employee stock-based compensation expense	$	103	$	94	$	347	$	186
Amortization of prepaid services	—		—		11		—
Total non-employee stock-based compensation expense	$	103	$	94	$	358	$	186
Total stock-based compensation expense	$	226	$	291	$	739	$	551

Outstanding options & warrants by individual price

The table below reflects the outstanding options and warrants by exercise price:

Options (000's)	Employee Warrants (000's)	Non-employee Warrants (000's)	Exercise Price
	204		$	1.04
18			$	1.30
		14	$	1.73
	199		$	1.93
	222		$	2.57
	241		$	2.59
	222		$	3.43
	116		$	3.46
	276		$	3.75
		50	$	3.80
		748	$	3.81
32			$	3.86
247	105		$	3.93
100		85	$	3.96
20			$	4.05
288			$	4.06
		55	$	4.08
57			$	4.11
126			$	4.30
	116		$	4.32
30			$	4.33
		16	$	4.37
		49	$	4.50
	105		$	4.58
25			$	4.61
42			$	4.90
105			$	5.71
	70		$	5.90
105			$	6.67
105			$	7.62
1,298	1,876	1,017

Employee | Warrant

Stock based compensation

Schedule of assumptions used in calculating fair value of options using the Black Scholes Merton option-pricing model

The assumptions used in calculating the fair value of employee common stock options and warrants granted during the six months ended June 30, 2014 and 2013, using the Black-Scholes-Merton option-pricing model are set forth in the following table:

	Six Months Ended June 30,
	2014		2013
Expected volatility	51.0	%	60.0	%
Expected life (in years)	5.2		5.2
Expected dividend yield	—		—
Risk-free interest rate	1.73	%	0.71	%

Summary of common stock warrants activity

Activity with respect to employee common stock warrants is summarized as follows: 

	Number of Shares (000's)	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in 000’s)
Outstanding, December 31, 2013	1,876	$	3.09
Granted	—	$	—
Exercised	—	$	—
Unvested warrants forfeited or cancelled	—	$	—
Vested warrants expired	—	$	—
Outstanding, June 30, 2014	1,876	$	3.09	4.3	$	2,383
Vested at June 30, 2014	1,724	$	2.94	4.0	$	2,371
Vested or expected to vest at June 30, 2014 (a)	1,863	$	3.08	4.3	$	2,383

Nonemployee | Warrant

Stock based compensation

Summary of common stock warrants activity

Activity with respect to non-employee common stock warrants is summarized as follows:    

	Number of Shares (000's)		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term(in years)	Aggregate Intrinsic Value (000's)
Outstanding, December 31, 2013	1,989		$	3.84
Granted	49		$	4.50
Exercised	(696	)	$	3.56
Unvested warrants forfeited or cancelled	—		$	—
Vested warrants expired	(325	)	$	4.51
Outstanding, June 30, 2014	1,017		$	3.85	1.8	$	449
Vested at June 30, 2014	1,017		$	3.85	1.8	$	449
Vested or expected to vest at June 30, 2014 (a)	1,017		$	3.85	1.8	$	449