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Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components (Tables)
12 Months Ended
Dec. 31, 2014
Consolidated Balance Sheets and Statements of Operations and Comprehensive Loss Components  
Schedule of inventory prepaid expenses and other current assets and property and equipment

                                                                                                                                                               

                                                                                                                                                                                    

 

 

December 31,

 

 

 

2014

 

2013

 

 

 

(in thousands)

 

Inventories:

 

 

 

 

 

 

 

Work-in-process

 

$

651

 

$

542

 

Finished goods

 

 

230

 

 

25

 

​  

​  

​  

​  

 

 

$

881

 

$

567

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

Prepaid expenses and other:

 

 

 

 

 

 

 

Interest receivable

 

$

160

 

$

382

 

Prepaid insurance

 

 

143

 

 

127

 

Prepaid expenses and other

 

 

584

 

 

595

 

​  

​  

​  

​  

 

 

$

887

 

$

1,104

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

Property and equipment, net:

 

 

 

 

 

 

 

Equipment, furniture and fixtures and leasehold improvements

 

$

4,255

 

$

3,923

 

Acquired software

 

 

750

 

 

686

 

​  

​  

​  

​  

 

 

 

5,005

 

 

4,609

 

Less: Accumulated depreciation and amortization

 

 

(4,151

)

 

(3,903

)

​  

​  

​  

​  

 

 

$

854

 

$

706

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

 

Schedule of identifiable intangible assets

 

                                                                                                                                                                                    

 

 

December 31, 2014

 

 

 

Life
(years)

 

Gross
Carrying
Amount

 

Accumulated
Amortization

 

Net
Carrying
Amount

 

Developed technology

 

 

3-5

 

$

9,240 

 

$

9,031 

 

$

209 

 

Patent license

 

 

 

 

780 

 

 

334 

 

 

446 

 

​  

​  

​  

​  

​  

​  

Total

 

 

 

 

$

10,020 

 

$

9,365 

 

$

655 

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

 

                                                                                                                                                                                    

 

 

December 31, 2013

 

 

 

Life
(years)

 

Gross
Carrying
Amount

 

Accumulated
Amortization

 

Net
Carrying
Amount

 

Developed technology

 

 

3-5

 

$

9,240 

 

$

8,142 

 

$

1,098 

 

Patent license

 

 

 

 

780 

 

 

223 

 

 

557 

 

​  

​  

​  

​  

​  

​  

Total

 

 

 

 

$

10,020 

 

$

8,365 

 

$

1,655 

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

 

Schedule of accrued expenses and other liabilities

                                                                                                                                                               

                                                                                                                                                                                    

 

 

December 31,

 

 

 

2014

 

2013

 

 

 

(in thousands)

 

Accrued expenses and other:

 

 

 

 

 

 

 

Accrued wages and employee benefits

 

$

1,026 

 

$

818 

 

Employee stock purchase plan withholdings

 

 

357 

 

 

286 

 

IC development wafer costs

 

 

203 

 

 

 

Professional fees

 

 

123 

 

 

61 

 

Deferred revenue

 

 

 

 

170 

 

Other

 

 

637 

 

 

744 

 

​  

​  

​  

​  

 

 

$

2,350 

 

$

2,079 

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

 

Schedule of other income, net

                                                                                                                                                               

                                                                                                                                                                                    

 

 

2014

 

2013

 

2012

 

 

 

(in thousands)

 

Interest income

 

$

155

 

$

174

 

$

171

 

Other income (expense), net

 

 

(12

)

 

35

 

 

(16

)

​  

​  

​  

​  

​  

​  

 

 

$

143

 

$

209

 

$

155

 

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​  

​