XML 51 R41.htm IDEA: XBRL DOCUMENT v3.7.0.1
Note 11 - Plant Consolidation (Details Textual)
3 Months Ended
Mar. 18, 2015
USD ($)
ft²
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Restructuring Charges   $ 123,000
Newburyport, Massachusetts Facility [Member]      
Area of Real Estate Property | ft² 137,000    
Restructuring Charges $ 2,100,000    
Payments for Restructuring 2,000,000    
Newburyport, Massachusetts Facility [Member] | Employee Severance Payments and Relocation Costs [Member]      
Restructuring and Related Cost, Expected Cost 180,000    
Newburyport, Massachusetts Facility [Member] | Moving and Vacating Expense [Member]      
Restructuring and Related Cost, Expected Cost 1,500,000    
Newburyport, Massachusetts Facility [Member] | Lease Termination [Member]      
Restructuring and Related Cost, Expected Cost $ 360,000