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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Current assets    
Cash and cash equivalents $ 6,120 $ 5,812
Restricted cash 5 32
Accounts receivable, net 1,113 730
Inventories 866 927
Prepaid expenses and other current assets 392 330
Total current assets 8,496 7,831
Property, plant and equipment, net 407 633
Intangible assets, net 195 171
Right-of-use assets 334 203
Deferred tax assets 527 435
Other assets 63 59
Total assets 10,022 9,332
Current liabilities    
Accounts payable 235 218
Accrued liabilities 343 302
Lease liabilities, current 219 154
PPP loan payable 186  
Accrued income taxes 59  
Deferred revenue   13
Total current liabilities 1,042 687
Long term liabilities    
Lease liabilities, long term 140 66
Deferred tax liabilities   8
Total long-term liabilities 140 74
Total liabilities 1,182 761
Commitments and contingencies (Notes 10 and 11)
Stockholders' equity    
Common stock, $0.001 par value: 30,000 shares authorized, 6,601 and 6,563 shares issued and outstanding at December 31, 2020 and December 31, 2019, respectively 7 7
Additional paid-in-capital 57,966 57,940
Accumulated other comprehensive income (loss) 37 (93)
Accumulated deficit (49,170) (49,283)
Total stockholders' equity 8,840 8,571
Total liabilities and stockholders' equity $ 10,022 $ 9,332