Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details Narrative)

v3.19.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Administrative expense $ 348
Sales and marketing expenses 0 1,700
Research and development discontinued operation 52
Working capital 14,100  
Marketable securities, available for sale 6,687 18,765
Unrealized gain (loss) on marketable securities 54 (78)
Accumulated unrealized loss on marketable securities 24 78
Adjustments to reduce inventory for excess or obsolete inventory 377 1,100
Cash and cash equivalents 1,554 3,173
Bank balance 1,600  
Amount of bank balance covered by federal depository insurance 250  
Amount of bank balance uninsured 1,500  
Allowance for bad debt
Net sales 13,126 9,867
Provision for sales allowances 1 2
Estimated sales returns 181 480
Deferred revenue $ 206
Stock issued price per share $ 0.0005  
Stock option exercisable period 10 years  
Research and development $ 398 431
Continued Operations [Member]    
Advertising and incentive promotion expenses 264 45
Research and development 398 431
Discontinued Operations [Member]    
Advertising and incentive promotion expenses 0 2,800
Research and development 0 52
Cooperative Incentive [Member]    
Advertising and incentive promotion expenses 88 200
Contract Manufacturing [Member]    
Net sales 12,633 9,666
Retail Customers [Member]    
Net sales $ 500 $ 200
Furniture and Fixtures [Member]    
Property, plant and equipment, useful life 5 years 5 years
TK Supplements [Member]    
Adjustments to reduce inventory for excess or obsolete inventory $ 270 $ 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 2.39%  
Marketable Securities [Member] | Maximum [Member]    
Investment in securities term 3 years  
Interest rate 3.67%