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Composition of Certain Financial Statement Captions
 12 Months Ended
Dec. 31, 2018
Composition Of Certain Financial Statement Captions [Abstract]  
Composition of Certain Financial Statement Captions

5.

Composition of Certain Financial Statement Captions

Inventories, net

As of December 31, 2018 and 2017, inventories, net, were comprised of the following (in thousands):

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Raw materials

 

$

758

 

 

$

681

 

Work in process

 

 

555

 

 

 

722

 

Finished goods

 

 

1,634

 

 

 

1,780

 

 

 

$

2,947

 

 

$

3,183

 

 

Other Current Assets

As of December 31, 2018 and 2017, other current assets were comprised of the following (in thousands):

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Prepaid supplies or services, current

 

$

440

 

 

$

544

 

Prepaid insurance

 

 

564

 

 

 

556

 

Prepaid consumption tax in Japan

 

 

19

 

 

 

99

 

Other receivables

 

 

91

 

 

 

112

 

 

 

$

1,114

 

 

$

1,311

 

 

Property and Equipment, net

As of December 31, 2018 and 2017, property and equipment, net, were comprised of the following (in thousands):

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Manufacturing and development equipment

 

$

3,753

 

 

$

4,507

 

Office and computer equipment

 

 

1,242

 

 

 

1,805

 

Leasehold improvements

 

 

2,535

 

 

 

5,087

 

 

 

 

7,530

 

 

 

11,399

 

Less accumulated depreciation

 

 

(4,971

)

 

 

(8,347

)

 

 

$

2,559

 

 

$

3,052

 

 

Depreciation expense totaled $0.8 million and $0.9 million for the years ended December 31, 2018 and 2017, respectively.

Other Assets

As of December 31, 2018 and 2017, other assets were comprised of the following (in thousands):

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Long-term supplies

 

$

1,540

 

 

$

2,181

 

Deposits

 

 

365

 

 

 

389

 

 

 

$

1,905

 

 

$

2,570

 

 

Accounts Payable and Accrued Expenses

As of December 31, 2018 and 2017, accounts payable and accrued expenses were comprised of the following (in thousands):

 

 

 

December 31,

 

 

 

2018

 

 

2017

 

Accrued expenses

 

$

1,191

 

 

$

1,599

 

Accounts payable

 

 

720

 

 

 

1,297

 

Accrued payroll and bonus

 

 

554

 

 

 

810

 

Accrued legal fees

 

 

186

 

 

 

509

 

Accrued vacation

 

 

192

 

 

 

64

 

Accrued R&D studies

 

 

230

 

 

 

286

 

Other current liabilities

 

 

284

 

 

 

225

 

 

 

$

3,357

 

 

$

4,790