Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Treasury Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2010	$ (4,770)	$ 500	$ 60	$ 4,063	$ 38,079	$ (2,784)	$ 35,148
Balance, shares at Dec. 31, 2010	635,189	5,000	6,054,741
Net loss					(2,921)		(2,921)
Change in pension and postretirement benefit plans and unrealized losses on short-term investments, net						(2,195)	(2,195)
Stock options and restricted stock issued to employees as compensation				960			960
Restricted stock issued to employees			1				1
Restricted stock issued to employees, shares			59,779
Tax benefit for the exercise of stock options				31			31
Treasury stock purchased	(1,492)						(1,492)
Treasury stock purchased, shares	100,202
Stock options exercised			1	1,137			1,138
Stock options exercised, shares			103,319
Dividends:
Common					(5,769)		(5,769)
Preferred					(25)		(25)
Balance at Dec. 31, 2011	(6,262)	500	62	6,191	29,364	(4,979)	24,876
Balance, shares at Dec. 31, 2011	735,391	5,000	6,217,839
Net loss					(10,889)		(10,889)	[1]
Change in pension and postretirement benefit plans and unrealized losses on short-term investments, net						980	980
Stock options and restricted stock issued to employees as compensation				867			867
Restricted stock issued to employees			1				1
Restricted stock issued to employees, shares			40,614
Tax benefit for the exercise of stock options				(31)			(31)
Treasury stock purchased	(1,224)						(1,224)
Treasury stock purchased, shares	82,309
Stock options exercised			1	676			677
Stock options exercised, shares			45,610
Reclassification of puttable common stock			2	4,123			4,125
Reclassification of puttable common stock, shares			272,479
Dividends:
Common					(6,259)		(6,259)
Preferred					(25)		(25)
Balance at Dec. 31, 2012	(7,486)	500	66	11,826	12,191	(3,999)	13,098
Balance, shares at Dec. 31, 2012	817,700	5,000	6,576,542
Net loss					(646)		(646)
Change in pension and postretirement benefit plans and unrealized losses on short-term investments, net						2,563	2,563
Stock options and restricted stock issued to employees as compensation				1,453			1,453
Restricted stock issued to employees			4				4
Restricted stock issued to employees, shares			394,084
Treasury stock purchased	(126)						(126)
Treasury stock purchased, shares	12,023
Dividends:
Common					(3,315)		(3,315)
Preferred					(25)		(25)
Balance at Dec. 31, 2013	$ (7,612)	$ 500	$ 70	$ 13,279	$ 8,205	$ (1,436)	$ 13,006
Balance, shares at Dec. 31, 2013	829,723	5,000	6,970,626

[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).