Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total USD ($)	Preferred Stock A	Common Stock USD ($)	Additional Paid-in Capital USD ($)	Retained Earnings (Accumulated Deficit) USD ($)	Treasury Stock USD ($)	Noncontrolling Interests USD ($)
Balance at Dec. 31, 2012	$ 168,605		$ 181	$ 203,833	$ (37,664)	$ (196)	$ 2,451
Balance (in shares) at Dec. 31, 2012		10	18,072
Increase (Decrease) in Stockholders' Equity
Net income	857				586		271
Stock-based compensation expense	20			20
Balance at Mar. 31, 2013	169,482		181	203,853	(37,078)	(196)	2,722
Balance (in shares) at Mar. 31, 2013		10	18,072
Balance at Dec. 31, 2013	409,864		258	298,530	108,984	(196)	2,288
Balance (in shares) at Dec. 31, 2013			25,795
Increase (Decrease) in Stockholders' Equity
Net income	1,719				1,480		239
Stock-based compensation expense	812			812
Stock issued pursuant to stock-based incentive compensation plans and related tax matters	38			38
Stock issued pursuant to stock-based incentive compensation plans and related tax matters (in shares)			30
Purchases of treasury stock	(178)					(178)
Balance at Mar. 31, 2014	$ 412,255		$ 258	$ 299,380	$ 110,464	$ (374)	$ 2,527
Balance (in shares) at Mar. 31, 2014			25,825