Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Debt (Details Textual)

v3.19.2
Note 5 - Debt (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2019
Dec. 30, 2018
Nov. 08, 2018
PNC Bank [Member] | Revolving Credit Facility [Member]      
Line of Credit Facility, Remaining Borrowing Capacity $ 27,144 $ 13,974  
Line of Credit Facility, Maximum Borrowing Capacity 45,000    
Long-term Line of Credit, Total $ 13,748 25,020  
PNC Bank [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 0.50%    
PNC Bank [Member] | Revolving Credit Facility [Member] | Base Rate [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.00%    
PNC Bank [Member] | Revolving Credit Facility [Member] | One, Two, or Three Month Fully Absorbed PNC LIBOR Rate [Member] | Minimum [Member]      
Debt Instrument, Basis Spread on Variable Rate 1.50%    
PNC Bank [Member] | Revolving Credit Facility [Member] | One, Two, or Three Month Fully Absorbed PNC LIBOR Rate [Member] | Maximum [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.00%    
TCW Asset Management Company, LLC [Member]      
Debt Issuance Cost, Gross, Noncurrent $ 2,466 2,749  
Debt Instrument, Unamortized Discount, Total $ 1,653 $ 1,843  
Class of Warrant or Right, Outstanding   504,735 504,735
Class of Warrant or Right, Exercise Price of Warrants or Rights $ 3.86   $ 0.01
Warrants and Rights Outstanding $ 1,948   $ 1,898
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 511,949    
TCW Asset Management Company, LLC [Member] | Term Loan A [Member]      
Additional Prepayment Fee After Closing Date, Percent, First Twelve Months 3.00%    
Additional Prepayment Fee After Closing Date, Percent, Year Two 2.00%    
Additional Prepayment Fee After Closing Date, Percent, Year Three 1.00%    
Additional Prepayment Fee After Closing Date, Percent, After Year Three 0.00%    
Long-term Line of Credit, Total $ 49,375 $ 50,000  
TCW Asset Management Company, LLC [Member] | Term Loan B [Member]      
Long-term Line of Credit, Total $ 12,000 $ 12,000  
TCW Asset Management Company, LLC [Member] | Base Rate [Member] | Term Loan A [Member]      
Debt Instrument, Basis Spread on Variable Rate 5.00%    
TCW Asset Management Company, LLC [Member] | Base Rate [Member] | Term Loan B [Member]      
Debt Instrument, Basis Spread on Variable Rate 8.50%    
TCW Asset Management Company, LLC [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan B [Member]      
Debt Instrument, Basis Spread on Variable Rate 10.50%