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Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Current assets    
Cash $ 4,733 $ 7,567
Restricted cash 1,775  
Accounts receivable, net 4,060 2,587
Insurance receivable   95
Inventories, net 3,183 2,403
Income taxes receivable 407 407
Prepaid expenses and other current assets 995 897
Total current assets 15,153 13,956
Property, plant and equipment, net 394 433
Other assets 6,739 6,898
Total assets 22,286 21,287
Current liabilities    
Accounts payable and accrued liabilities 4,303 4,027
Deferred revenue 2,564 714
Current maturities of long-term debt   780
Income taxes payable   17
Total current liabilities 6,867 5,538
Long-term debt   633
Other long-term liabilities 1,176 1,257
Total liabilities 8,043 7,428
Stockholders' equity    
Preferred stock, $0.001 par value, 5,000,000 shares authorized; none issued  
Common stock, $0.001 par value, 30,000,000 shares authorized; 8,726,045 shares issued and outstanding on March 31, 2021 and December 31, 2020 9 9
Additional paid-in capital 24,014 23,981
Accumulated other comprehensive income 14 14
Accumulated deficit (9,794) (10,145)
Total stockholders' equity 14,243 13,859
Total liabilities and stockholders' equity $ 22,286 $ 21,287