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Consolidated Balance Sheets (USD $)
In Thousands, unless otherwise specified
May 31, 2013
May 31, 2012
Current Assets:    
Cash $ 11,838 $ 12,011
Restricted cash 600  
U.S. Treasury Bills, at cost plus accrued interest. 4,000 16,998
Accounts receivable 13,472 11,199
Note receivable, current 47  
Inventories 8,732 8,359
Workers' compensation security deposit 2,597 2,402
Other current assets 351 501
Total Current Assets 41,637 51,470
Note Receivable, non-current 1,631  
Property, Plant and Equipment, at Cost:    
Land 3,918 3,918
Buildings and improvements 40,960 40,891
Machinery and equipment 17,918 18,122
Property, Plant and Equipment gross 62,796 62,931
Less accumulated depreciation 47,355 45,856
Net operating property, plant and equipment 15,441 17,075
Idle property, net of accumulated depreciation 2,901 4,121
Net Property, Plant and Equipment 18,342 21,196
Other Assets 6,317 6,190
Total Assets 67,927 78,856
Current Liabilities:    
Accounts payable, trade 3,675 3,296
Accrued salaries and wages 2,624 2,990
Accrued marketing programs 1,965 2,215
Accrued warranty and related expenses 3,682 3,870
Other accrued liabilities 2,261 2,310
Total Current Liabilities 14,207 14,681
Other Deferred Liabilities 8,069 8,011
Commitments and Contingencies - See Note 11      
Shareholders' Equity:    
Common stock, $.0277 par value, 15,000,000 shares authorized; issued 11,217,144 shares 312 312
Additional paid-in capital 4,928 4,928
Retained earnings 106,155 116,668
Treasury stock, at cost, 2,825,900 shares (65,744) (65,744)
Total Shareholders' Equity 45,651 56,164
Total Liabilities and Shareholders' Equity $ 67,927 $ 78,856