Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Expected federal statutory tax benefit	$ (228)	$ 14
Increase (reduction) in taxes resulting from:
State income taxes recoverable	21	21
Non-deductible expenses (permanent differences)	51	45
Change in valuation allowance	(1,726)	(264)
Tax rate changes	1,477
Other	(15)	205
Income tax (benefit) expense	$ (420)	$ 21