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VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
19. VALUATION AND QUALIFYING ACCOUNTS
 
 
 
Deducted from Assets
 
 
 
Doubtful
 
 
Returns and
 
 
 
 
 
 
Accounts
 
 
Allowances
 
 
Total
 
 
 
(Dollars in thousands)
 
BALANCE, DECEMBER 31, 2016
 
$
974
 
 
$
1,542
 
 
$
2,516
 
Add - Additions charged to earnings
 
 
621
 
 
 
3,865
 
 
 
4,486
 
Deduct - Charges for purposes for which reserves were established
 
 
(624
)
 
 
(4,072
)
 
 
(4,696
)
Deduct - Adjustment to reserve
 
 
(100
)
 
 
-
 
 
 
(100
)
BALANCE, DECEMBER 31, 2017
 
$
871
 
 
$
1,335
 
 
$
2,206
 
Add - Additions charged to earnings
 
 
311
 
 
 
4,170
 
 
 
4,481
 
Deduct - Charges for purposes for which reserves were established
 
 
(231
)
 
 
(4,170
)
 
 
(4,401
)
BALANCE, DECEMBER 31, 2018
 
$
951
 
 
$
1,335
 
 
$
2,286