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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 preferred 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 preferred stock or units for all dilutive potential preferred shares or units outstanding during the reporting period.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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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 of expense (income) related to adjustment to fair value of warrant liability.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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The Company, Accounting Pronouncements Recently Adopted (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	Dec. 31, 2018	Dec. 31, 2017
Assets and Liabilities, Lessee [Abstract]
Right-of-use assets	$ 1,392		$ 1,392		$ 0
Lease liabilities	1,413		1,413
Statement of Operations [Abstract]
Change in fair value of warrant liability gain (loss)	$ 0	$ 79	$ 0	$ 101
Earnings Per Common and Series C Preferred Stock [Abstract]
Loss per Preferred Series C share basic and diluted	$ (9.58)	$ (6.82)	$ (36.14)	$ (64.27)
ASU 2016-02 [Member]
Assets and Liabilities, Lessee [Abstract]
Right-of-use assets					848
Lease liabilities					$ 848
ASU 2017-11 [Member]
Net Assets, Adjusted Balance [Abstract]
Cumulative accounting adjustment from adoption of new standard, net of tax						$ 67
Statement of Operations [Abstract]
Change in fair value of warrant liability gain (loss)		$ (79)		$ (101)
Balance Sheet [Abstract]
Fair value of warrant liability		104		104
ASU 2017-11 [Member] \| Balances prior to Adoption of ASU 2017-11 [Member]
Statement of Operations [Abstract]
Change in fair value of warrant liability gain (loss)		(1,053)		(1,275)
Balance Sheet [Abstract]
Fair value of warrant liability		1,342		1,342
ASU 2017-11 [Member] \| Effect of Adoption Higher / (Lower) [Member]
Statement of Operations [Abstract]
Change in fair value of warrant liability gain (loss)		(974)		(1,174)
Balance Sheet [Abstract]
Fair value of warrant liability		$ (1,238)		$ (1,238)
Earnings Per Common and Series C Preferred Stock [Abstract]
Basic and diluted loss per share (in dollars per share)		$ (0.03)		$ (0.05)
Loss per Preferred Series C share basic and diluted		$ (10.91)		$ (17.43)
ASU 2017-11 [Member] \| Accumulated Deficit [Member]
Net Assets, Adjusted Balance [Abstract]
Cumulative accounting adjustment from adoption of new standard, net of tax						(2,547)
ASU 2017-11 [Member] \| Additional Paid-In Capital [Member]
Net Assets, Adjusted Balance [Abstract]
Cumulative accounting adjustment from adoption of new standard, net of tax						$ 2,614