Fair Value Disclosure (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents the Company's assets and liabilities accounted for at fair value on a recurring basis:

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
Description	December 31, 2017		(Level 1)		(Level 2)		(Level 3)
Assets:
Available for sale securities	$	9,166	$	9,166	$	—	$	—
Interest rate swap agreements	42		—		42		—
	$	9,208	$	9,166	$	42	$	—

			Fair Value Measurements at Reporting Date Using
			Quoted Prices in				Significant
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
Description	December 31, 2016		(Level 1)		(Level 2)		(Level 3)
Assets:
Available for sale securities	$	7,882	$	7,882	$	—	$	—
	$	7,882	$	7,882	$	—	$	—
Liabilities:
Interest rate swap agreements	$	339	$	—	$	339	$	—
	$	339	$	—	$	339	$	—