Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2011	$ 1,032	$ 55,528	$ (27,430)	$ 85,191	$ 114,321
Balance (in Shares) at Dec. 31, 2011	10,322,000
Comprehensive			(315)	(4,288)	(4,603)
Issuance of common stock through stock plan transactions	3	230			233
Issuance of common stock through stock plan transactions (in Shares)	28,000
Issuance of restricted stock	13	(13)
Issuance of restricted stock (in Shares)	129,000
Forfeiture of restricted stock	(1)	1
Forfeiture of restricted stock (in Shares)	(5,000)
Release of restricted stock	(1)	(155)			(156)
Release of restricted stock (in Shares)	(15,000)
Share-based compensation		351			351
Common stock subject to rescission rights		804			804
Tax deficiency from stock plan transactions		(34)			(34)
Balance at Jun. 30, 2012	1,046	56,712	(27,745)	80,903	110,916
Balance (in Shares) at Jun. 30, 2012	10,459,000
Balance at Mar. 31, 2012	1,045	55,738	(27,474)	86,982	116,291
Balance (in Shares) at Mar. 31, 2012	10,447,000
Comprehensive			(271)	(6,079)	(6,350)
Issuance of common stock through stock plan transactions	2	118			120
Issuance of common stock through stock plan transactions (in Shares)	17,000
Issuance of restricted stock (in Shares)	2,000
Forfeiture of restricted stock	(1)	1
Forfeiture of restricted stock (in Shares)	(6,000)
Release of restricted stock		(10)			(10)
Release of restricted stock (in Shares)	(1,000)
Share-based compensation		175			175
Common stock subject to rescission rights		724			724
Tax deficiency from stock plan transactions		(34)			(34)
Balance at Jun. 30, 2012	1,046	56,712	(27,745)	80,903	110,916
Balance (in Shares) at Jun. 30, 2012	10,459,000
Balance at Dec. 31, 2012	1,052	57,192	(31,329)	60,956	87,871
Balance (in Shares) at Dec. 31, 2012	10,524,000				10,523,559
Comprehensive			158	2,410	2,568
Issuance of common stock through stock plan transactions	3	180			183
Issuance of common stock through stock plan transactions (in Shares)	30,000
Issuance of restricted stock	1	(1)
Issuance of restricted stock (in Shares)	18,000
Forfeiture of restricted stock	(2)	2
Forfeiture of restricted stock (in Shares)	(25,000)
Release of restricted stock	(1)	(82)			(83)
Release of restricted stock (in Shares)	(13,000)
Share-based compensation		264			264
Common stock subject to rescission rights	(3)	238			235
Common stock subject to rescission rights (in Shares)	(30,000)
Tax deficiency from stock plan transactions		(85)			(85)
Balance at Jun. 30, 2013	1,050	57,708	(31,171)	63,366	90,953
Balance (in Shares) at Jun. 30, 2013	10,504,000				10,504,104
Balance at Mar. 31, 2013	1,049	57,522	(31,252)	62,194	89,513
Balance (in Shares) at Mar. 31, 2013	10,488,000
Comprehensive			81	1,172	1,253
Issuance of common stock through stock plan transactions	1	80			81
Issuance of common stock through stock plan transactions (in Shares)	15,000
Issuance of restricted stock	1	(1)
Issuance of restricted stock (in Shares)	15,000
Forfeiture of restricted stock	(1)	1
Forfeiture of restricted stock (in Shares)	(13,000)
Release of restricted stock		(2)			(2)
Release of restricted stock (in Shares)	(1,000)
Share-based compensation		131			131
Tax deficiency from stock plan transactions		(23)			(23)
Balance at Jun. 30, 2013	$ 1,050	$ 57,708	$ (31,171)	$ 63,366	$ 90,953
Balance (in Shares) at Jun. 30, 2013	10,504,000				10,504,104