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Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]    
Net sales $ 93,662 $ 103,350
Cost of goods sold 68,367 74,646
Depreciation expense 3,146 2,846
Total cost of goods sold 71,513 77,492
Gross profit 22,149 25,858
Selling expenses 11,062 13,477
General and administrative 12,828 13,616
Goodwill and intangible asset impairment 0 1,244
Amortization expense 192 631
Total operating expenses 24,082 28,968
Loss from operations (1,933) (3,110)
Other income (expense):    
Interest expense (249) (271)
Fair value gain on investments 1,731 0
Realized gain on investments, net 1,413 0
Gain on sale of property and equipment 189 54
Other income 84 16
Total other income (expense) 3,168 (201)
Loss before provision for income taxes 1,235 (3,311)
Benefit for income taxes 782 (225)
Net income (loss) $ 453 $ (3,086)
Basic loss per common share $ 0.03 $ (0.19)
Diluted loss per common share $ 0.03 $ (0.19)
Weighted average number of shares outstanding - Basic 15,748 15,872
Weighted average number of shares outstanding - Diluted 15,804 16,319