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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Current assets:    
Cash and cash equivalents $ 13,202 $ 5,733
Restricted cash 839 899
Trade accounts receivable, net 2,524 1,992
Inventories, net 6,130 5,727
Current portion of deposits 172 210
Prepaid expenses and other current assets 826 804
Total current assets 23,693 15,365
Property and equipment, net 6,985 6,947
Brand name and trademark 1,510 1,510
Purchased technology and license rights, net 350 431
Deposits, net of current portion 140 165
Other assets 444 415
Total assets 33,122 24,833
Current liabilities:    
Accounts payable 2,341 1,553
Accrued payroll 113 197
Accrued vacation 257 181
Current portion of mortgage note payable 239 239
Accrued and other liabilities 1,712 1,596
Total current liabilities 4,662 3,766
Mortgage note payable, net of current portion 2,994 3,173
Deferred rents 20 23
Deferred tax liability 563 564
Derivative liabilities 266 12,613
Total liabilities $ 8,505 $ 20,139
Commitments and Contingencies (see Notes 9 and 11)
Series A 6% convertible preferred stock, par value $0.001; 3,500,000 shares authorized, zero issued and outstanding as of September 30, 2015 $ 3,190
Stockholders' equity:    
Series B convertible preferred stock, par value $.001; 3,588,139 issued and 1,975,639 outstanding as of September 30, 2015 $ 2
Common stock, par value $.001 par value; 40,000,000 shares authorized; 27,194,251 issued and 27,051,172 outstanding as of September 30, 2015 and 17,995,409 issued and 17,852,330 outstanding as of December 31, 2014, respectively 27 $ 18
Additional paid-in capital 42,664 29,334
Accumulated deficit (18,076) (27,848)
Total stockholders' equity 24,617 1,504
Total liabilities and stockholders' equity $ 33,122 $ 24,833