Quarterly report pursuant to Section 13 or 15(d)

LIABILITIES AND LONG-TERM DEBT (Details)

v3.4.0.3
LIABILITIES AND LONG-TERM DEBT (Details) - USD ($)
 3 Months Ended
Oct. 01, 2014
Mar. 31, 2016
Dec. 31, 2015
Debt Instrument [Line Items]      
Short-term amount outstanding   $ 8,061,000 $ 8,061,000
Long-term amount outstanding   71,153,000 73,169,000
Revolving Loan [Member]      
Debt Instrument [Line Items]      
Commitment fee 0.37%    
Revolving Note One [Member]      
Debt Instrument [Line Items]      
Maximum borrowing capacity   40,000,000  
Borrowed funds under the agreement   1,000,000 1,000,000
Available remaining borrowing capacity   $ 39,000,000  
Term loan [Member]      
Debt Instrument [Line Items]      
Maturity date   Sep. 30, 2019  
Short-term amount outstanding   $ 7,000,000 7,000,000
Long-term amount outstanding   $ 52,500,000 $ 54,300,000
Interest rate on loan   2.68% 2.42%
Total long-term debt $ 70,000,000    
Amortization period for principal on acquisition term loan   10 years  
Quarterly installment amount of acquisition term loan $ 1,750,000    
Term Note One [Member] | Revolving Note One [Member]      
Debt Instrument [Line Items]      
Short-term amount outstanding   $ 1,300,000 $ 1,300,000
Long-term amount outstanding   18,300,000 $ 18,700,000
Amount of multiple advance loan can be borrowed   $ 25,000,000