CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income	Treasury stock, at cost	Non-controlling interests
Balance at Dec. 31, 2014	$ 41,443	$ 25,413	$ 91,509	$ 367,967		$ (444,495)	$ 1,049
Balance (in shares) at Dec. 31, 2014		25,413
Increase (Decrease) in Equity
Net income	4,408			3,698			710
Other comprehensive income, net of tax	0				$ 0
Distributions to non-controlling interest holders	(657)						(657)
Share-based compensation expense	443		443
Exercise of stock options	203			(1,701)		1,904
Repurchase of shares	(3,959)					(3,959)
Balance at Mar. 31, 2015	41,881	$ 25,413	91,952	369,964	0	(446,550)	1,102
Balance (in shares) at Mar. 31, 2015		25,413
Balance at Dec. 31, 2015	52,270	$ 25,413	96,321	369,270		(440,026)	1,292
Balance (in shares) at Dec. 31, 2015		25,413
Increase (Decrease) in Equity
Net income	18,892			18,494			398
Other comprehensive income, net of tax	699				699
Distributions to non-controlling interest holders	(448)						(448)
Share-based compensation expense	1,877		1,877
Exercise of stock options	366			(2,312)		2,678
Repurchase of shares	(11,691)					(11,691)
Balance at Mar. 31, 2016	$ 61,965	$ 25,413	$ 98,198	$ 385,452	$ 699	$ (449,039)	$ 1,242
Balance (in shares) at Mar. 31, 2016		25,413