Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2017

Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

	Balance at		Charged to			Deductions		Balance at
	Beginning		Costs and			from		End of
Description	of Year		Expense			Reserves		Year
Deferred tax asset allowance:
Year ended December 31, 2017	$	915,000	$	(344,000	)	$	—	$	571,000
Year ended December 31, 2016	1,031,000		(116,000		)	—		915,000
Year ended December 31, 2015	1,004,000		27,000			—		1,031,000