Changes in the Company's carrying value of other intangible assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	$ 13,577		$ 13,206
Intangible Asssets, Gross, Excluding Goodwill, Beginning	20,842		20,471
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(2,819)		(1,451)
Net adjustments, finite lived	5,165		371
Net adjustments to intangible assets	65		371
Amortization of Intangible Assets	(1,306)		(1,368)	(700)
Finite-Lived Intangible Assets, Gross, Ending	18,742		13,577	13,206
Intangible Asssets, Gross, Excluding Goodwill, Ending	20,907		20,842	20,471
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	(4,125)		(2,819)	(1,451)
Trademarks [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	100		100
Indefinite-Lived Trademarks, begining	7,265		7,265
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(33)		0
Adjustments, transfers into finite lived	5,100	[1]
Adjustments, transfers out of infinite lived	(5,100)	[1]
Amortization of Intangible Assets	(34)		(33)
Finite-Lived Intangible Assets, Gross, Ending	5,200		100
Indefinite-Lived Trademarks, ending	2,165		7,265
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	(67)		(33)
Developed Technology [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	460		460
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(92)		0
Amortization of Intangible Assets	(92)		(92)
Finite-Lived Intangible Assets, Gross, Ending	460		460
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	(184)		(92)
Client Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	11,960		11,960
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(2,537)		(1,389)
Amortization of Intangible Assets	(1,056)		(1,148)
Finite-Lived Intangible Assets, Gross, Ending	11,960		11,960
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	(3,593)		(2,537)
Noncompete Agreements [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	150		150
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(46)		(15)
Amortization of Intangible Assets	(29)		(31)
Finite-Lived Intangible Assets, Gross, Ending	150		150
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	(75)		(46)
Franchise Rights [Member]
Finite-lived Intangible Assets [Roll Forward]
Finite-Lived Intangible Assets, Gross, Beginning	907		536
Finite-Lived Intangible Assets, Accumulated Amortization, Beginning	(111)		(47)
Additions	65		371
Amortization of Intangible Assets	(95)		(64)
Finite-Lived Intangible Assets, Gross, Ending	972		907
Finite-Lived Intangible Assets, Accumulated Amortization, Ending	$ (206)		$ (111)

[1] In December 2012, the Company reassessed the useful life of the $5.1 million L.R. Kimball trademark and determined the trademark to have a finite life. Accordingly, the Company accounted for this change on a prospective basis and will amortize it on a straight-line basis over its estimated remaining useful life.