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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Current assets:    
Cash and cash equivalents $ 11,508 $ 14,456
Restricted cash 779 779
Trade accounts receivable, net 4,279 4,733
Inventories, net 7,422 6,158
Prepaid expenses and other current assets 639 413
Total current assets 24,627 26,539
Property and equipment, net 6,368 6,449
Brand name and trademark 1,510 1,510
Purchased technology and license rights, net 188 215
Goodwill 185 185
Deposits 71 109
Other assets 143 103
Total assets 33,092 35,110
Current liabilities:    
Accounts payable 2,176 1,606
Accrued payroll 229 419
Accrued vacation 431 404
Current portion of mortgage note payable 239 239
Accrued and other liabilities 1,853 2,604
Total current liabilities 4,928 5,272
Mortgage note payable, net of current portion 2,635 2,694
Note payable 140 140
Deferred rents 13 14
Deferred tax liability 564 564
Derivative liabilities 115 203
Total liabilities 8,395 8,887
STOCKHOLDERS' EQUITY    
Series B convertible preferred stock, $0.001 par value; 3,588,139 authorized and 975,639 issued and outstanding as of March 31, 2017 and December 31, 2016 1 1
Common stock, $0.001 par value; 40,000,000 shares authorized; 31,002,832 issued and 30,859,753 outstanding as of March 31, 2017 and December 31, 2016 31 31
Additional paid-in capital 49,784 49,625
Accumulated deficit (25,119) (23,434)
Total stockholders' equity 24,697 26,223
Total liabilities and stockholders' equity $ 33,092 $ 35,110