The Company, Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Loss attributable to each class	$ (840)	$ (539)	$ (3,079)	$ (2,784)
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	5,227,130	6,904,621	6,078,554	5,243,768
Series C Preferred Stock [Member]
Earnings Per Share [Abstract]
Loss attributable to each class	$ (20)	$ (69)	$ (196)	$ (1,534)
Weighted average number of shares outstanding during the period (in shares)	2,105	10,049	5,412	23,872
Basic and diluted loss per share (in dollars per share)	$ (9.58)	$ (6.82)	$ (36.14)	$ (64.27)
Common Stock [Member]
Earnings Per Share [Abstract]
Loss attributable to each class	$ (840)	$ (539)	$ (3,079)	$ (2,784)
Weighted average number of shares outstanding during the period (in shares)	32,903,287	29,912,827	31,663,355	16,099,752
Basic and diluted loss per share (in dollars per share)	$ (0.03)	$ (0.02)	$ (0.10)	$ (0.17)
Common Stock Purchase Warrants [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	1,073,319	2,392,760	1,776,216	2,398,651
Restricted Stock Units [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	120,773	140,097	123,675	58,717
Common Stock Options [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	4,033,038	4,371,764	4,178,663	2,786,400

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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-Publisher FASB
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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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