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Summary of Significant Accounting Policies (Details Textual) |  | 12 Months Ended
--- | --- | ---
Oct. 01, 2018 | Dec. 31, 2018 USD ($) Customer / Customers | Dec. 31, 2017 USD ($) Customer / Customers
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  | $ 163,000 | $ 272,000
Expenditures for repairs and improvements |  | 10,000 |
Sale of stock, description | The Company agreed to pay Taglich Brothers $70,000 (7% of the gross proceeds of the offering) for acting as placement agent for the offering. |  |
Net sales, billed but not shipped under such bill and hold arrangements |  | 89,000 | 619,000
Loss from continuing operations |  | 109,000 | 6,195,000
Loss from discontinued operations |  |  | 3,417,000
Jobs act, description |  | An ?emerging growth company? is one with less than $1.0 billion in annual sales, that has less than $700 million in market value of its shares of common stock held by non-affiliates and issues less than $1.0 billion of non-convertible debt over a three year period. A company may take advantage of this extended transition period until the first to occur of the date that it (i) is no longer an ?emerging growth company? or (ii) affirmatively and irrevocably opts out of this extended transition period. The Company has elected to take advantage of the benefits of this extended transition period until December 31, 2018, the date that it was no longer an ?emerging growth company?. |
Change in useful life of capitalized engineering costs |  | $ 2,043,000 |
NTW [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  | 163,000 | 163,000
ECC [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  | $ 109,000 | $ 109,000
Accounts receivable [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Number of Customers | Customer / Customers |  | 2 | 2
Sale of stock, description |  | Customer was less than 10% of gross accounts receivable at December 31, 2018. |
Credit and concentration risks, description |  | There were two customers that represented 64.5% of gross accounts receivable and three customers that represented 68.7% of gross accounts receivable at December 31, 2018 and 2017, respectively. |
Total Sales [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Number of Customers | Customer / Customers |  | 3 | 3
Sale of stock, description |  | Customer was less than 10% of sales at December 31, 2018 and 2017, respectively. |
Credit and concentration risks, description |  | There were three customers that represented 70.0% of total sales, and three customers that represented 62.0% of total sales for the years ended December 31, 2018 and 2017, respectively. |
Welding [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  |  | $ 292,000
Woodbine [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  |  | 2,565,000
Compac [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  |  | 560,000
Eur-Pac [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  |  | 1,655,000
Sterling [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Goodwill |  |  | 4,540,000
Freight out [Member] |  |  |
Summary of Significant Accounting Policies (Textual) |  |  |
Operating expenses |  | $ 151,000 | $ 196,000

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