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, 2014
Sep. 30, 2013
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities $ 6,808 $ 21,145
Cash flows from investing activities:    
Acquisitions 1,991  
Proceeds from the disposal of property, plant and equipment 3,305 770
Change in restricted cash and investments (500) (499)
Purchases of marketable securities   3,990
Sales of marketable securities 5,075 5,920
Other (44) (83)
Net cash provided by (used in) investing activities 1,523 (23)
Cash flows from financing activities:    
Payments on long-term debt 150 118
Dividends paid 2,900 2,605
Other 4 140
Net cash provided by (used in) financing activities (3,046) (2,583)
Effect of exchange rate changes on cash (153) 84
Net increase (decrease) in cash and cash equivalents 5,132 18,623
Cash & cash equivalents at beginning of period 109,176 72,601
Cash & cash equivalents at end of period 114,308 91,224
Parent Company [Member]
    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 2,900 2,477
Cash flows from financing activities:    
Dividends paid (2,900) (2,605)
Other   128
Net cash provided by (used in) financing activities (2,900) (2,477)
Subsidiary Issuer [Member]
    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 1,030 15,198
Cash flows from investing activities:    
Capital expenditures (276) (159)
Proceeds from the disposal of property, plant and equipment 953 18
Change in restricted cash and investments 500 499
Purchases of marketable securities   (3,990)
Sales of marketable securities 5,075 5,920
Other 44 83
Net cash provided by (used in) investing activities 6,296 2,371
Cash flows from financing activities:    
Other 4 12
Net cash provided by (used in) financing activities 4 12
Net increase (decrease) in cash and cash equivalents 7,330 17,581
Cash & cash equivalents at beginning of period 95,567 57,307
Cash & cash equivalents at end of period 102,897 74,888
Guarantor Subsidiaries [Member]
    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 1,892 2,707
Cash flows from investing activities:    
Capital expenditures (4,933) (2,994)
Acquisitions (1,991)  
Proceeds from the disposal of property, plant and equipment 2,352 752
Net cash provided by (used in) investing activities (4,572) (2,242)
Cash flows from financing activities:    
Payments on long-term debt (150) (118)
Net cash provided by (used in) financing activities (150) (118)
Net increase (decrease) in cash and cash equivalents (2,830) 347
Cash & cash equivalents at beginning of period 10,347 12,463
Cash & cash equivalents at end of period 7,517 12,810
Non-Guarantor Subsidiaries [Member]
    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 986 763
Cash flows from investing activities:    
Capital expenditures (201) (152)
Net cash provided by (used in) investing activities (201) (152)
Cash flows from financing activities:    
Effect of exchange rate changes on cash (153) 84
Net increase (decrease) in cash and cash equivalents 632 695
Cash & cash equivalents at beginning of period 3,262 2,831
Cash & cash equivalents at end of period 3,894 3,526
Consolidated Entities [Member]
    
Condensed Cash Flow Statements, Captions [Line Items]    
Net cash provided by (used in) operating activities 6,808 21,145
Cash flows from investing activities:    
Capital expenditures (5,410) (3,305)
Acquisitions (1,991)  
Proceeds from the disposal of property, plant and equipment 3,305 770
Change in restricted cash and investments 500 499
Purchases of marketable securities   (3,990)
Sales of marketable securities 5,075 5,920
Other 44 83
Net cash provided by (used in) investing activities 1,523 (23)
Cash flows from financing activities:    
Payments on long-term debt (150) (118)
Dividends paid (2,900) (2,605)
Other 4 140
Net cash provided by (used in) financing activities (3,046) (2,583)
Effect of exchange rate changes on cash (153) 84
Net increase (decrease) in cash and cash equivalents 5,132 18,623
Cash & cash equivalents at beginning of period 109,176 72,601
Cash & cash equivalents at end of period $ 114,308 $ 91,224