XML 68 R56.htm IDEA: XBRL DOCUMENT v3.19.1
Note 2 - Revenue Recognition - Adoption of ASC 606 (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Jan. 01, 2018
Property, plant, and equipment $ 111,779       $ 106,716       $ 111,779 $ 106,716   $ 107,743
Less accumulated depreciation and amortization (54,112)       (53,064)       (54,112) (53,064)   (53,612)
Net property, plant and equipment 57,667       53,652       57,667 53,652   54,131
Deferred revenue 2,507       297       2,507 297   871
Deferred income taxes 4,129       2,440       4,129 2,440   2,415
Retained earnings 111,802       97,562       111,802 97,562   97,492
Net sales 50,697 $ 47,808 $ 49,019 $ 42,931 37,220 $ 35,684 $ 37,886 $ 37,053 190,455 147,843 $ 146,132  
Cost of sales                 142,147 112,356 111,482  
Gross profit 12,706 $ 12,431 $ 12,986 $ 10,185 $ 7,837 $ 8,193 $ 9,941 $ 9,516 48,308 $ 35,487 $ 34,650  
Accounting Standards Update 2014-09 [Member]                        
Property, plant, and equipment                       1,027
Less accumulated depreciation and amortization                       (548)
Net property, plant and equipment                       479
Deferred revenue                       574
Deferred income taxes                       (25)
Retained earnings                       $ (70)
Calculated under Revenue Guidance in Effect before Topic 606 [Member]                        
Property, plant, and equipment 110,372               110,372      
Less accumulated depreciation and amortization (53,110)               (53,110)      
Net property, plant and equipment 57,262               57,262      
Deferred revenue 2,129               2,129      
Deferred income taxes 4,154               4,154      
Retained earnings 111,750               111,750      
Net sales                 190,259      
Cost of sales                 142,073      
Gross profit                 48,186      
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member]                        
Property, plant, and equipment 1,407               1,407      
Less accumulated depreciation and amortization (1,002)               (1,002)      
Net property, plant and equipment 405               405      
Deferred revenue 378               378      
Deferred income taxes (25)               (25)      
Retained earnings $ 52               52      
Net sales                 196      
Cost of sales                 74      
Gross profit                 $ 122