Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock option grants	$ 41	$ 77
Annual director stock award	0	445
Stock based compensation expense	$ 41	$ 522

Amount of increase to additional paid-in capital (APIC) from recognition of equity-based compensation.

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