Stock Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 187,000	$ 649,000
Stock-based compensation expense, tax benefit	436,000
No. of Shares [Roll Forward]
Outstanding (in shares)	711,000
Options granted (in shares)	747,000
Exercised (in shares)	(16,000)
Forfeited and cancelled (in shares)	(394,000)
Outstanding (in shares)	1,048,000	711,000
Vested and expected to vest (in shares)	1,005,000
Total shares exercisable (in shares)	264,000
Shares remaining available for grant (in shares)	565,000
Weighted Average Exercise Price [Roll Forward]
Outstanding (in dollars per share)	$ 5.37
Options granted (in dollars per share)	$ 5.17
Exercised (in dollars per share)	$ 3.31
Forfeited and cancelled (in dollars per share)	$ 4.80
Outstanding (in dollars per share)	$ 5.45	$ 5.37
Vested and expected to vest (in dollars per share)	$ 5.46
Total shares exercisable (in dollars per share)	$ 6.30
Aggregate Intrinsic Value [Abstract]
Outstanding	116,000
Outstanding	270,000	116,000
Vested and expected to vest	261,000
Total shares exercisable	66,000
Weighted average grant date fair value of options granted (in dollars per share)	$ 1.55	$ 2.04
Total intrinsic value of options exercised	11,000	31,000
Assumptions used for fair value of options at the date of the grant [Abstract]
Expected option life	4 years 7 months 6 days	5 years 6 months
Weighted average risk-free interest rate (in hundredths)	1.30%	0.90%
Weighted average expected volatility (in hundredths)	33.00%	45.00%
Expected dividend yield (in hundredths)	0.00%	0.00%
Unrecognized compensation expense	1,800,000
Period for recognition	2014 through 2017
Weighted average grant date fair value [Roll Forward]
Restricted stock awards granted (in shares)	247,000	183,000
Share price (in dollars per share)	$ 0.02
Days prior to grant date considered for fair value of award	0 days
Weighted average grant date fair value (in dollars per share)	$ 4.50	$ 4.86
Shares released (in shares)	49,000	87,000
Restricted stock awards cancelled (in shares)	95,000
$3.22 - $4.81 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price (in dollars per share)	$ 3.22
Upper Range of Exercise Price (in dollars per share)	$ 4.81
Number Outstanding (in shares)	215,000
Weighted Average Remaining Life	7 years 7 months 20 days
Weighted Average Exercise Price (in dollars per share)	$ 4.64
$4.82 - $6.01 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price (in dollars per share)	$ 4.88
Upper Range of Exercise Price (in dollars per share)	$ 6.01
Number Outstanding (in shares)	756,000
Weighted Average Remaining Life	8 years 8 months 5 days
Weighted Average Exercise Price (in dollars per share)	$ 5.80
$6.25 - $11.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price (in dollars per share)	$ 6.25
Upper Range of Exercise Price (in dollars per share)	$ 11.40
Number Outstanding (in shares)	77,000
Weighted Average Remaining Life	3 years 0 months 14 days
Weighted Average Exercise Price (in dollars per share)	$ 8.71
$3.22 - $11.40 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range of Exercise Price (in dollars per share)	$ 3.25
Upper Range of Exercise Price (in dollars per share)	$ 11.40
Number Outstanding (in shares)	1,048,000
Weighted Average Remaining Life	8 years 0 months 18 days
Weighted Average Exercise Price (in dollars per share)	$ 6.30
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 438,000	$ 302,000
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	0 months
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	60 months
Performance Based Restricted Stock [Member]
Weighted average grant date fair value [Roll Forward]
Restricted stock awards granted (in shares)		121,000
Restricted stock awards cancelled (in shares)	93,000	23,000
Performance Based Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	12 months
Performance Based Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	36 months
Non-vested equity awards [Member]
Activity of nonvested options outstanding [Roll Forward]
Balance (in shares)	174,000
Granted (in shares)	247,000
Vested (in shares)	(49,000)
Forfeited and cancelled (in shares)	(95,000)
Balance (in shares)	277,000	174,000
Weighted average grant date fair value [Roll Forward]
Balance (in dollars per share)	$ 4.65	$ 4.68
Granted (in dollars per share)	$ 4.50
Vested (in dollars per share)	$ 5.02
Forfeited and cancelled (in dollars per share)	$ 4.92
Balance (in dollars per share)	$ 4.65	$ 4.68
2005 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved under plan (in shares)	2,250,000
Expiration period	10 years
2005 Equity Incentive Plan [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
2005 Equity Incentive Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	5 years