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CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 7,924 $ 4,162
Trade accounts receivable, net 1,990 2,874
Inventories, net 8,415 7,543
Current portion of deposits 948 714
Prepaid expenses and other current assets 545 951
Total current assets 19,822 16,244
Property and equipment, net 7,063 7,229
Brand name and trademark 1,510 1,510
Purchased technology, net 575 664
Deferred income tax assets, net 3,412 1,799
Deposits, net of current portion 120 133
Other assets 674 604
Total assets 33,176 28,183
Current liabilities:    
Accounts payable 1,060 803
Accrued payroll 172 118
Accrued vacation 200 186
Current portion of bonds payable to bank 72 138
Accrued-litigation settlement 541 232
Accrued and other liabilities 867 445
Total current liabilities 2,912 1,922
Bonds payable to bank, net of current portion 3,185 3,281
Derivative liabilities - warrants 5,749 85
Total liabilities 11,846 5,288
Commitments and Contingencies (see Note 13)      
Series A 6% convertible preferred stock, par value $0.001; 3,500,000 shares authorized and issued; preference in liquidation - $7,000,000 2,259   
STOCKHOLDER'S EQUITY:    
Preferred stock, par value $.001; 10,000,000 shares authorized;      
Common stock, par value $.001 par value; 40,000,000 shares authorized; 17,826,336 and 17,781,538 issued and 17,683,257 and 17,638,459 outstanding on December 31, 2013 and 2012, respectively 18 18
Additional paid-in capital 28,687 25,517
Deficit (9,634) (2,640)
Total stockholders' equity 19,071 22,895
Total liabilities and stockholders' equity $ 33,176 $ 28,183