Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.10.0.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Administrative expense $ 348    
Research and development discontinued operation 52    
Working capital 18,000   18,000      
Marketable securities, available for sale 6,776   6,776   $ 18,765  
Unrealized loss on marketable securities     25      
Accumulated unrealized loss on marketable securities 53   53      
Adjustments to reduce inventory for excess or obsolete inventory 495   495   1,100  
Cash and cash equivalents 3,665 37,280 3,665 37,280 3,173 $ 441
Bank balance 3,800   3,800      
Amount of bank balance covered by federal depository insurance 500   500      
Amount of bank balance uninsured 3,300   3,300      
Allowance for bad debt      
Net sales 3,186 1,905 6,594 2,676    
Provision for sales allowances     10   2  
Estimated sales returns     443   480  
Deferred revenue 52   52      
Prepaid expenses and other current assets $ 139   $ 139   139  
Stock issued price per share $ 0.0005   $ 0.0005      
Stock option exercisable period     10 years      
Research and development $ 87 224 $ 174 258    
Continued Operations [Member]            
Advertising and incentive promotion expenses 39 21 72 53    
Discontinued Operations [Member]            
Advertising and incentive promotion expenses 0 205 0 2,800    
Cooperative Incentive [Member]            
Advertising and incentive promotion expenses     98   200  
Contract Manufacturing [Member]            
Net sales 3,106 1,900 6,440 2,600    
Retail Customers [Member]            
Net sales 80 $ 46 $ 154 $ 64    
Furniture and Fixtures [Member]            
Property, plant and equipment, useful life     5 years      
TK Supplements [Member]            
Adjustments to reduce inventory for excess or obsolete inventory $ 144   $ 144   $ 541  
Minimum [Member] | Building and Improvements [Member]            
Property, plant and equipment, useful life     10 years      
Minimum [Member] | Machinery and Equipment [Member]            
Property, plant and equipment, useful life     3 years      
Minimum [Member] | Computer Equipment and Software [Member]            
Property, plant and equipment, useful life     3 years      
Maximum [Member] | Building and Improvements [Member]            
Property, plant and equipment, useful life     39 years      
Maximum [Member] | Machinery and Equipment [Member]            
Property, plant and equipment, useful life     7 years      
Maximum [Member] | Computer Equipment and Software [Member]            
Property, plant and equipment, useful life     5 years      
Marketable Securities [Member] | Minimum [Member]            
Investment in securities term     1 year      
Interest rate     2.25%      
Marketable Securities [Member] | Maximum [Member]            
Investment in securities term     3 years      
Interest rate     3.05%