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Composition of Certain Financial Statement Captions
12 Months Ended
Dec. 31, 2011
Supplemental Balance Sheet Disclosures [Abstract]  
Composition of Certain Financial Statement Captions
7.
Composition of Certain Financial Statement Captions

Inventories, net

As of December 31, 2011 and 2010, inventories, net, were comprised of the following:

   
December 31,
 
   
2011
  
2010
 
        
Raw materials
 $1,503,000  $2,311,000 
Work in process
  790,000   410,000 
Finished goods
  1,025,000   657,000 
   $3,318,000  $3,378,000 
 
Other Current Assets

As of December 31, 2011 and 2010, other current assets were comprised of the following:

   
December 31,
 
   
2011
  
2010
 
   
 
  
 
 
Prepaid insurance
 $234,000  $230,000 
Prepaid other
  372,000   477,000 
Other receivables
  231,000   127,000 
   $837,000  $834,000 

Property and Equipment, net

As of December 31, 2011 and 2010, property and equipment, net, were comprised of the following:

   
December 31,
 
   
2011
  
2010
 
   
 
  
 
 
Manufacturing and development equipment
 $4,268,000  $4,035,000 
Office and computer equipment
  2,177,000   2,137,000 
Leasehold improvements
  3,255,000   3,125,000 
    9,700,000   9,297,000 
Less accumulated depreciation and amortization
  (7,989,000)  (7,613,000)
   $1,711,000  $1,684,000 

Depreciation expense totaled $618,000, $710,000 and $1,458,000 for the years ended December 31, 2011, 2010, and 2009, respectively.

Accounts Payable and Accrued Expenses

As of December 31, 2011 and 2010, accounts payable and accrued expenses were comprised of the following:

   
December 31,
 
   
2011
  
2010
 
   
 
  
 
 
Accrued legal fees
 $829,000  $646,000 
Accrued R&D studies
  534,000   1,227,000 
Accounts payable
  272,000   601,000 
Accrued vacation
  908,000   760,000 
Accrued bonus
  866,000   1,045,000 
Accrued expenses
  1,572,000   2,077,000 
Deferred rent
  37,000   17,000 
Accrued accounting fees
  90,000   135,000 
Accrued payroll
  226,000   262,000 
   $5,334,000  $6,770,000