Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2019 USD ($) Customer / Customers	Dec. 31, 2018 USD ($) Customer / Customers
Summary of Significant Accounting Policies (Textual)
Stock-based compensation	$ 378,000	$ 293,000
Goodwill	163,000	163,000
Expenditures for repairs and improvements	10,000
Net sales, billed but not shipped under such bill and hold arrangements	$ 0	89,000
Jobs act, description	An "emerging growth company," may, under Section 7(a)(2)(B) of the Securities Act, delay adoption of new or revised accounting standards applicable to public companies until such standards would otherwise apply to private companies. 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 had 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".
Impairment charge continuing operations	$ 275,000
Impairment charge discontinued operations		495,000
Director [Member]
Summary of Significant Accounting Policies (Textual)
Stock-based compensation	$ 244,000	$ 305,000
Total Sales [Member]
Summary of Significant Accounting Policies (Textual)
Number of customers | Customer / Customers	3	3
Concentration risks	76.00%	72.70%
Credit and concentration risks, description	Customer was less than 10% of sales at December 31, 2019 and 2018, respectively.
Accounts receivable [Member]
Summary of Significant Accounting Policies (Textual)
Number of customers | Customer / Customers	3	2
Concentration risks	67.80%	64.50%
Credit and concentration risks, description	Customer was less than 10% of gross accounts receivable at December 31, 2018
Freight out [Member]
Summary of Significant Accounting Policies (Textual)
Operating expenses	$ 134,000	$ 151,000
ECC [Member]
Summary of Significant Accounting Policies (Textual)
Goodwill		$ 109,000
Minimum [Member]
Summary of Significant Accounting Policies (Textual)
Payment terms	30 days
Maximum [Member]
Summary of Significant Accounting Policies (Textual)
Payment terms	75 days