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Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2019 USD ($) Segment shares | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) shares
Significant Accounting Policies [Line Items] |  |  |
Number of operating segments | Segment | 1 |  |
Allowance for doubtful trade accounts receivable | $ 0 | $ 0 |
Goodwill impairment | 0 |  |
Contract assets | 0 |  |
Shipping and other transportation costs | $ 278,000 | $ 433,000 | $ 462,000
Type of Cost, Good or Service [Extensible List] | us-gaap:ShippingAndHandlingMember | us-gaap:ShippingAndHandlingMember | us-gaap:ShippingAndHandlingMember
Advertising costs | $ 28,000 | $ 2,526,000 | $ 16,000
Stock-based compensation | $ 2,204,000 | $ 2,910,000 | $ 736,000
Diluted weighted average common shares outstanding | shares | 10,097,000 | 9,521,000 | 10,361,000
Warrant |  |  |
Significant Accounting Policies [Line Items] |  |  |
Diluted weighted average common shares outstanding | shares | 1,000 | 1,000 | 2,000
Options Outstanding |  |  |
Significant Accounting Policies [Line Items] |  |  |
Diluted weighted average common shares outstanding | shares | 412,000 | 412,000 | 874,000
Minimum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property and equipment, estimated useful life | 3 years |  |
Maximum |  |  |
Significant Accounting Policies [Line Items] |  |  |
Property and equipment, estimated useful life | 15 years |  |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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