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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
 12 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Jan. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income $ 39,518,000 $ 37,410,000 $ 103,714,000
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 19,519,000 18,639,000 16,787,000
Impairment charges on real estate   125,000 68,000
Stock based compensation expense 1,314,000 64,000  
Income from equity method investments (6,144,000) (8,984,000) (32,229,000)
Dividends received from equity method investments 7,018,000 11,151,000 22,889,000
Gain on sale of investment (192,000) (10,385,000)  
Derivative financial instruments     (1,141,000)
Gain on disposal of real estate and property and equipment (328,000) (503,000) (275,000)
Deferred income tax 3,043,000 (4,196,000) 22,473,000
Excess tax benefit from stock option exercises     (441,000)
Changes in assets and liabilities:      
Accounts receivable (2,535,000) (496,000) 7,692,000
Inventory 121,000 884,000 1,308,000
Prepaid expenses and other assets (1,357,000) (1,135,000) (1,929,000)
Income taxes refundable 4,184,000 (2,235,000) (1,985,000)
Accounts payable-trade 36,000 387,000 2,030,000
Accrued expenses and other liabilities 4,912,000 (536,000) (1,745,000)
Net cash provided by operating activities 69,109,000 40,190,000 137,216,000
CASH FLOWS FROM INVESTING ACTIVITIES:      
Capital expenditures (14,208,000) (15,495,000) (9,927,000)
Repayment of note receivable 24,000 23,000 6,000
Proceeds from sale of investment 4,492,000 45,476,000  
Proceeds from sale of real estate and property and equipment 1,511,000 2,001,000 1,778,000
Restricted cash (76,000) (54,000) 500,000
Restricted investments and deposits 510,000 250,000 323,000
Net cash (used in) provided by investing activities (7,747,000) 32,201,000 (7,320,000)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Payments of long term debt     (75,726,000)
Stock options exercised     931,000
Payments to noncontrolling interests holders (3,842,000) (4,471,000) (4,856,000)
Excess tax benefit from stock option exercises     441,000
Treasury stock acquired (4,709,000) (69,852,000) (18,138,000)
Net cash used in financing activities (8,551,000) (74,323,000) (97,348,000)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 52,811,000 (1,932,000) 32,548,000
CASH AND CASH EQUIVALENTS-Beginning of year 135,765,000 137,697,000 105,149,000
CASH AND CASH EQUIVALENTS-End of year 188,576,000 135,765,000 137,697,000
Non cash financing activities-Cashless exercises of stock options     100,000
Non cash financing activities-Accrued common stock repurchase   356,000  
Non cash financing activities-Equity awards issued 1,095,000    
Non cash investing activities-Accrued capital expenditures $ 342,000 $ 1,063,000 804,000
Non cash investing activities- Loan receivable granted in connection with sale of real estate     $ 475,000