CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Non-controlling Interest Non Redeemable [Member]	Total Equity [Member]	Non-Controlling Interest - Redeemable [Member]	Net Income (Loss) [Member]
Balances, Amount at Dec. 31, 2012		$ 216	$ (33,846)	$ 100,619	$ 201,192	$ 4,033	$ 272,214	$ 11,426
Balances, Shares at Dec. 31, 2012		21,578,772	4,653,039
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income					22,342	1,244	23,586	5,560
Income from continuing operations	$ 29,146								$ 29,146
Noncontrolling interest	$ 0						0	608
Noncontrolling interest distributions						(1,060)	(1,060)	(7,066)
Purchase of additional controlling interest				(1,267)			(1,267)	(612)
Nonvested Stock Compensation				3,886			3,886
Issuance of vested stock		184,403
Treasury shares redeemed to pay income tax			$ (869)				(869)
Treasury shares redeemed to pay income tax, shares	(40,608)		(40,608)
Excess tax benefits-vesting nonvested stock				(50)			(50)
Issuance of common stock under Employee Stock Purchase Plan		$ 2		784			786
Shares Issued during Period (Shares)	38,459	38,459
Transfer of noncontrolling interest						(1,342)	(1,342)	1,342
Balances, Amount at Dec. 31, 2013		$ 218	$ (34,715)	103,972	223,534	2,875	295,884	11,258
Balances, Shares at Dec. 31, 2013		21,801,634	4,693,647
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income					21,837	1,214	23,051	5,701
Income from continuing operations	$ 28,752								28,752
Noncontrolling interest						138	138	130
Noncontrolling interest distributions						(1,271)	(1,271)	(5,572)
Purchase of additional controlling interest				(359)			(359)	0
Sale of noncontrolling interest				161			161
Nonvested Stock Compensation				4,094			4,094
Issuance of vested stock		177,272
Treasury shares redeemed to pay income tax			$ (945)				(945)
Treasury shares redeemed to pay income tax, shares	(40,716)		(40,716)
Excess tax benefits-vesting nonvested stock				60			60
Issuance of common stock under Employee Stock Purchase Plan		$ 2		780			782
Shares Issued during Period (Shares)	36,305	36,305
Balances, Amount at Dec. 31, 2014	$ 321,595	$ 220	$ (35,660)	108,708	245,371	2,956	321,595	11,517
Balances, Shares at Dec. 31, 2014		22,015,211	4,734,363
Ending Balance, Treasury Shares at Dec. 31, 2014	(4,734,363)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income					32,335	1,737	34,072	7,578
Income from continuing operations	$ 41,650								$ 41,650
Noncontrolling interest						155	155	0
Noncontrolling interest distributions						(1,637)	(1,637)	(6,687)
Stock options exercised, Shares	9,500	9,500
Stock options exercised				144			144
Purchase of additional controlling interest				(275)			(275)
Nonvested Stock Compensation				4,225			4,225
Issuance of vested stock		176,989
Treasury shares redeemed to pay income tax			$ (1,479)				(1,479)
Treasury shares redeemed to pay income tax, shares	(42,197)		(42,197)
Excess tax benefits-vesting nonvested stock				(211)			(211)
Issuance of common stock under Employee Stock Purchase Plan		$ 2		780			782
Shares Issued during Period (Shares)	22,723	22,723
Balances, Amount at Dec. 31, 2015	$ 357,793	$ 222	$ (37,139)	$ 113,793	$ 277,706	$ 3,211	$ 357,793	$ 12,408
Balances, Shares at Dec. 31, 2015		22,224,423	4,776,560
Ending Balance, Treasury Shares at Dec. 31, 2015	(4,776,560)