Quarterly report pursuant to Section 13 or 15(d)

Balance Sheets

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Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Current assets    
Cash and cash equivalents $ 105,105 $ 92,851
Marketable securities 23,135 21,033
Accounts receivable, net 30,927 30,828
Inventories, net 13,961 14,343
Deferred cost of revenue 382 398
Income tax receivable 562 433
Prepaid expenses and other current assets 2,432 1,659
Total current assets 176,504 161,545
Property and equipment    
Rental equipment, net 53,482 54,582
Manufacturing equipment and tooling 6,323 6,133
Computer equipment and software 4,803 4,705
Furniture and equipment 779 779
Leasehold improvements 832 816
Land and building 125 125
Construction in process 305 75
Total property and equipment 66,649 67,215
Less accumulated depreciation (42,851) (42,016)
Property and equipment, net 23,798 25,199
Intangible assets, net 214 241
Deferred tax asset - noncurrent 26,708 26,654
Other assets 405 410
Total assets 227,629 214,049
Current liabilities    
Accounts payable and accrued expenses 16,849 12,795
Accrued payroll 3,832 6,123
Warranty reserve - current 1,848 1,688
Deferred revenue - current 2,760 2,239
Total current liabilities 25,289 22,845
Long-term liabilities    
Warranty reserve - noncurrent 2,160 1,792
Deferred revenue - noncurrent 7,142 7,042
Other noncurrent liabilities 263 282
Total liabilities 34,854 31,961
Commitments and contingencies (Note 8)
Stockholders' equity    
Common stock, $0.001 par value per share; 200,000,000 authorized; 20,244,243 and 19,782,403 shares issued and outstanding as of September 30, 2016 and December 31, 2015, respectively 20 20
Additional paid-in capital 199,160 194,466
Accumulated deficit (6,431) (12,363)
Accumulated other comprehensive income (loss) 26 (35)
Total stockholders' equity 192,775 182,088
Total liabilities and stockholders' equity $ 227,629 $ 214,049