Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows

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Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities $ 21,145 $ 6,689
Cash flows from investing activities:    
Capital expenditures 3,305 8,318
Acquisitions   598
Proceeds from the disposal of property, plant and equipment 770 711
Change in restricted cash and investments (499) 6
Purchase of marketable securities 3,990 4,677
Proceeds from the sale of marketable securities 5,920 2,885
Other (83) (60)
Net cash provided by (used in) investing activities (23) (9,943)
Cash flows from financing activities:    
Payments on long-term debt 118 62
Dividends paid 2,605 2,594
Other 140 47
Net cash provided by (used in) financing activities (2,583) (2,609)
Effect of exchange rate changes on cash 84 55
Net decrease in cash and cash equivalents 18,623 (5,808)
Cash & cash equivalents at beginning of period 72,601 79,721
Cash & cash equivalents at end of period 91,224 73,913
Parent Company [Member]
    
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities 2,477 2,547
Cash flows from financing activities:    
Dividends paid (2,605) (2,594)
Other 128 47
Net cash provided by (used in) financing activities (2,477) (2,547)
Subsidiary Issuer [Member]
    
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities 15,198 (5,061)
Cash flows from investing activities:    
Capital expenditures (159) (768)
Proceeds from the disposal of property, plant and equipment 18  
Change in restricted cash and investments 499 (6)
Purchase of marketable securities (3,990) (4,677)
Proceeds from the sale of marketable securities 5,920 2,885
Other 83 60
Net cash provided by (used in) investing activities 2,371 (2,506)
Cash flows from financing activities:    
Other 12  
Net cash provided by (used in) financing activities 12  
Net decrease in cash and cash equivalents 17,581 (7,567)
Cash & cash equivalents at beginning of period 57,307 64,946
Cash & cash equivalents at end of period 74,888 57,379
Guarantor Subsidiaries [Member]
    
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities 2,707 8,333
Cash flows from investing activities:    
Capital expenditures (2,994) (7,163)
Acquisitions   (598)
Proceeds from the disposal of property, plant and equipment 752 711
Net cash provided by (used in) investing activities (2,242) (7,050)
Cash flows from financing activities:    
Payments on long-term debt (118) (62)
Net cash provided by (used in) financing activities (118) (62)
Net decrease in cash and cash equivalents 347 1,221
Cash & cash equivalents at beginning of period 12,463 12,276
Cash & cash equivalents at end of period 12,810 13,497
Non-Guarantor Subsidiaries [Member]
    
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities 763 870
Cash flows from investing activities:    
Capital expenditures (152) (387)
Net cash provided by (used in) investing activities (152) (387)
Cash flows from financing activities:    
Effect of exchange rate changes on cash 84 55
Net decrease in cash and cash equivalents 695 538
Cash & cash equivalents at beginning of period 2,831 2,499
Cash & cash equivalents at end of period 3,526 3,037
Consolidated Entities [Member]
    
Note 15 - Financial Information About the Parent, the Issuer and the Guarantors (Details) - Condensed Consolidating Statement Of Cash Flows [Line Items]    
Net cash provided by (used in) operating activities 21,145 6,689
Cash flows from investing activities:    
Capital expenditures (3,305) (8,318)
Acquisitions   (598)
Proceeds from the disposal of property, plant and equipment 770 711
Change in restricted cash and investments 499 (6)
Purchase of marketable securities (3,990) (4,677)
Proceeds from the sale of marketable securities 5,920 2,885
Other 83 60
Net cash provided by (used in) investing activities (23) (9,943)
Cash flows from financing activities:    
Payments on long-term debt (118) (62)
Dividends paid (2,605) (2,594)
Other 140 47
Net cash provided by (used in) financing activities (2,583) (2,609)
Effect of exchange rate changes on cash 84 55
Net decrease in cash and cash equivalents 18,623 (5,808)
Cash & cash equivalents at beginning of period 72,601 79,721
Cash & cash equivalents at end of period $ 91,224 $ 73,913