Quarterly report pursuant to Section 13 or 15(d)

Balance Sheets

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Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Current assets    
Cash and cash equivalents $ 72,400 $ 66,106
Short-term investments 13,694 16,793
Accounts receivable, net 23,748 19,872
Inventories, net 10,275 8,648
Deferred cost of revenue 520 397
Income tax receivable 2,158 2,158
Prepaid expenses and other current assets 1,185 870
Total current assets 123,980 114,844
Property and equipment    
Rental equipment, net of allowances 54,876 54,677
Manufacturing equipment and tooling 4,818 4,680
Computer equipment and software 4,626 4,503
Furniture and equipment 802 732
Leasehold improvements 1,091 978
Land and building 126 125
Construction in process 847 578
Total property and equipment 67,186 66,273
Less accumulated depreciation (37,542) (35,593)
Property and equipment, net 29,644 30,680
Intangible assets, net 206 229
Deferred tax asset - noncurrent 14,474 15,464
Other assets 96 97
Total assets 168,400 161,314
Current liabilities    
Accounts payable and accrued expenses 17,220 12,867
Accrued payroll 3,017 5,271
Current portion of long-term debt 238 315
Warranty reserve - current 1,351 1,226
Deferred revenue - current 2,212 2,323
Income tax payable 6 11
Total current liabilities 24,044 22,013
Long-term liabilities    
Warranty reserve - noncurrent 1,078 747
Deferred revenue - noncurrent 4,768 4,199
Other noncurrent liabilities 321 337
Total liabilities $ 30,211 $ 27,296
Commitments and contingencies (Note 9)
Stockholders' equity    
Common stock, $0.001 par value per share; 200,000,000 authorized; 19,877,486 and 19,782,403 shares issued and outstanding as of March 31, 2016 and December 31, 2015, respectively $ 20 $ 20
Additional paid-in capital 181,030 179,143
Accumulated deficit (42,743) (45,108)
Accumulated other comprehensive loss (118) (37)
Total stockholders' equity 138,189 134,018
Total liabilities and stockholders' equity $ 168,400 $ 161,314