CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Capital in Excess of Par Value [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2010	$ 1,004	$ 54,138	$ (21,691)	$ 73,734	$ 107,185
Balance (in shares) at Dec. 31, 2010	10,040,000
Comprehensive income:
Comprehensive income	0	0	54	2,708	2,762
Issuance of common stock through stock plan transactions	6	380	0	0	386
Issuance of common stock through stock plan transactions (in shares)	62,000
Issuance of restricted stock	3	(3)	0	0	0
Issuance of restricted stock (in shares)	30,000
Repurchased shares	(2)	(308)	0	0	(310)
Repurchased shares (in shares)	(21,000)
Release of restricted stock	(1)	(114)	0	0	(115)
Release of restricted stock (in shares)	(7,000)
Share-based compensation	0	187	0	0	187
Tax benefit from stock plan transactions	0	224	0	0	224
Balance at Mar. 31, 2011	1,010	54,504	(21,637)	76,442	110,319
Balance (in shares) at Mar. 31, 2011	10,104,000
Balance at Dec. 31, 2011	1,032	55,528	(27,430)	85,191	114,321
Balance (in shares) at Dec. 31, 2011					10,321,749
Comprehensive income:
Comprehensive income	0	0	(44)	1,791	1,747
Issuance of common stock through stock plan transactions	1	112	0	0	113
Issuance of common stock through stock plan transactions (in shares)	11,000
Issuance of restricted stock	13	(13)	0	0	0
Issuance of restricted stock (in shares)	127,000
Forfeiture of restricted stock	0	0	0	0	0
Forfeiture of restricted stock (in shares)	1,000
Release of restricted stock	(1)	(145)	0	0	(146)
Release of restricted stock (in shares)	(14,000)
Share-based compensation	0	176	0	0	176
Common stock subject to recession rights	0	80	0	0	80
Tax benefit from stock plan transactions	0	0	0	0	0
Balance at Mar. 31, 2012	$ 1,045	$ 55,738	$ (27,474)	$ 86,982	$ 116,291
Balance (in shares) at Mar. 31, 2012					10,447,350