Note 6. Restructuring -Textuals (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Restructuring Expense and Other Related Items
Restructuring (Gain) Expense	$ (1,832)	$ 1,186
Gain (Loss) on Disposition of Property Plant Equipment	(2,076)	$ 12
Proceeds from Sale of Buildings	12,000
Restructuring and Related Cost, Cost Incurred to Date	$ 10,787
Percentage of Restructuring Costs Expected in Cash	91.00%
FY 2015 Post Falls Restructuring Plan
Restructuring Expense and Other Related Items
Effect on Future Earnings, Amount	$ 5,000
Achieved Annual Pre-tax Operating Income Savings	900
Restructuring and Related Cost, Cost Incurred to Date	9,741
FY 2015 Plane Fleet Reduction
Restructuring Expense and Other Related Items
Achieved Annual Pre-tax Operating Income Savings	800
Restructuring and Related Cost, Cost Incurred to Date	1,046
Transition and Other Employee Costs
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	4,900
Transition and Other Employee Costs | FY 2015 Post Falls Restructuring Plan
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	4,681
Transition and Other Employee Costs | FY 2015 Plane Fleet Reduction
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	224
Plant Closure and Other Exit Costs
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	6,900
Plant Closure and Other Exit Costs | FY 2015 Post Falls Restructuring Plan
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	6,857
Asset Write-Downs
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	1,100
Asset Write-Downs | FY 2015 Post Falls Restructuring Plan
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	284
Asset Write-Downs | FY 2015 Plane Fleet Reduction
Restructuring Expense and Other Related Items
Restructuring and Related Cost, Cost Incurred to Date	822
Post Falls Land and Facility
Restructuring Expense and Other Related Items
Gain (Loss) on Disposition of Property Plant Equipment	$ 2,100
Property, Plant and Equipment, Other Types
Restructuring Expense and Other Related Items
Gain (Loss) on Disposition of Property Plant Equipment			$ 200
Fair Value, Measurements, Nonrecurring | Property, Plant and Equipment, Other Types
Restructuring Expense and Other Related Items
Impairment of Long-Lived Assets to be Disposed of				$ 1,100