Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net loss	$ (646)	$ (10,889)	[1]	$ (2,921)
Other comprehensive income (loss):
Unrealized holding loss on short-term investments arising during the period				32
Defined benefit pension plans:
Net actuarial gain (loss)	1,960	732		(4,068)
Amortization of transition obligation		28		28
Amortizaion of prior service costs	(274)	(274)		(275)
Amortization of actuarial gain (loss)	877	1,040		849
Income tax expense (benefit)		546		(1,239)
Other comprehensive income (loss)	2,563	980		(2,195)
Comprehensive income (loss)	$ 1,917	$ (9,909)		$ (5,116)

[1] The Company recorded an additional $1.4 milion in tax expense, compared to what was previously reported in its Annual Report on Form 10-K/A for the year ended December 31, 2012 (see Note 1).