Quarterly report pursuant to Section 13 or 15(d)

Balance Sheets

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Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Current assets    
Cash and cash equivalents $ 51,822 $ 56,836
Short-term investments 14,240  
Accounts receivable, net of allowances of $6,299 and $3,745 at June 30, 2015 and December 31, 2014, respectively 24,765 19,349
Inventories, net of allowances of $168 and $141 at June 30, 2015 and December 31, 2014,respectively 9,308 7,616
Deferred cost of revenue 460 515
Income tax receivable 2,148 2,129
Deferred tax asset - current 4,976 4,976
Prepaid expenses and other current assets 1,723 1,122
Total current assets 109,442 92,543
Property and equipment    
Rental equipment, net of allowances of $932 and $832 at June 30, 2015 and December 31, 2014, respectively 52,597 48,359
Manufacturing equipment and tooling 4,271 3,985
Computer equipment and software 4,155 3,699
Furniture and equipment 778 649
Leasehold improvements 933 756
Land and building 126 126
Construction in process 400 193
Total property and equipment 63,260 57,767
Less accumulated depreciation (31,086) (25,840)
Property and equipment, net 32,174 31,927
Intangible assets, net 238 270
Deferred tax asset - noncurrent 15,248 15,248
Other assets 97 97
Total assets 157,199 140,085
Current liabilities    
Accounts payable and accrued expenses 17,181 11,273
Accrued payroll 4,257 4,066
Current portion of long-term debt 307 299
Warranty reserve - current 1,065 781
Deferred revenue - current 2,278 2,316
Total current liabilities 25,088 18,735
Long-term liabilities    
Warranty reserve - noncurrent 541 334
Deferred revenue - noncurrent 3,155 2,176
Long-term debt, net of current portion 159 315
Other noncurrent liabilities 339 375
Total liabilities $ 29,282 $ 21,935
Commitments and contingencies (Note 5)    
Stockholders' equity    
Common stock, $0.001 par value per share; 200,000,000 and 60,000,000 shares authorized; 19,346,143 and 19,059,364 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively $ 19 $ 19
Additional paid-in capital 179,560 174,824
Accumulated deficit (51,662) (56,693)
Total stockholders' equity 127,917 118,150
Total liabilities and stockholders' equity $ 157,199 $ 140,085