Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of Restricted Stock Unit Awards Activity
The RSUs activity was as follows:
 
Units
 
Weighted-Average
Grant Date 
Fair Value
Outstanding as of December 31, 2012
158,557

 
$
7.73

Granted
45,914

 
21.43

Vested
(88,610
)
 
10.68

Forfeited
(24,643
)
 
7.75

Outstanding as of December 31, 2013
91,218

 
11.75

Granted
35,752

 
16.68

Vested
(50,695
)
 
12.81

Forfeited
(20,672
)
 
12.74

Outstanding as of December 31, 2014
55,603

 
13.59

Granted
48,323

 
3.44

Vested
(85,036
)
 
7.70

Forfeited
(18,890
)
 
14.15

Outstanding as of December 31, 2015
—

 
—
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Recognized stock-based compensation expense was included in the Company’s consolidated statements of operations as follows (in thousands):
 
Years Ended December 31,

2015
 
2014
 
2013
Cost of revenues
$
14

 
$
69

 
$
70

Operating expenses
280

 
792

 
722

Total stock-based compensation expense
$
294

 
$
861

 
$
792
Schedule of Unrecognized Stock-Based Compensation Expense Related to Outstanding Unvested Restricted Stock Unit Awards Expected to be Recognized
As of December 31, 2015, unrecognized stock-based compensation expense related to any outstanding restricted stock units and the CEO’s stock option award is expected to be recognized over a weighted average period of 1.9 years, as follows (in thousands):
Year Ending December 31:
 
2016
$
83

2017
70

2018
67

2019
63

2020
16

Total unrecognized stock-based compensation expense
$
299