CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
NET SALES	$ 47,190	$ 41,317	$ 86,152	$ 81,849
COST OF PRODUCTS SOLD	33,172	31,409	61,768	61,556
Gross profit	14,018	9,908	24,384	20,293
COSTS AND EXPENSES:
General and administrative expenses	6,082	4,389	13,288	9,837
Selling and distribution expenses	4,492	4,497	8,974	8,520
Amortization of purchased intangible assets	1,004	1,015	1,988	2,014
Restructuring expenses	458	829	458	829
Total costs and expenses	12,036	10,730	24,708	21,200
OPERATING INCOME (LOSS)	1,982	(822)	(324)	(907)
OTHER INCOME (EXPENSE):
Other income (expense), net	(949)	304	(529)	336
Interest expense	(330)	(397)	(836)	(561)
Interest income	0	1	1	2
INCOME (LOSS) BEFORE INCOME TAXES	703	(914)	(1,688)	(1,130)
INCOME TAX PROVISION	514	(148)	1,144	49
NET INCOME (LOSS)	$ 189	$ (766)	$ (2,832)	$ (1,179)
EARNINGS (LOSS) PER SHARE
Basic (in dollars per share)	$ 0.01	$ (0.05)	$ (0.20)	$ (0.08)
Diluted (in dollars per share)	$ 0.01	$ (0.05)	$ (0.20)	$ (0.08)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING:
Basic (in shares)	14,348,353	14,142,991	14,308,954	14,071,058
Diluted (in shares)	14,348,353	14,142,991	14,308,954	14,071,058
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.02	$ 0.02	$ 0.04	$ 0.04