Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net sales	$ 82,392	$ 65,604	$ 155,479	$ 126,591
Costs and expenses:
Cost of goods sold	53,114	42,230	101,326	81,003
Selling and administrative expenses	23,327	16,994	44,509	34,423
Other periodic pension costs	96	484	192	698
Interest expense	758	195	1,035	379
	77,295	59,903	147,062	116,503
Income before taxes on income	5,097	5,701	8,417	11,106
Income tax expense	1,280	1,360	2,150	2,930
Net income	$ 3,817	$ 4,341	6,267	8,176
Gain on sale of property, plant and equipment				$ 1,018
Weighted average number of shares outstanding during the period
(Basic) (in shares)	14,956,221	14,501,399	14,888,940	14,426,060
(Diluted) (in shares)	15,559,404	15,040,431	15,508,517	14,985,063
Basic
Net income, Basic (in dollars per share)	$ 0.26	$ 0.30	$ 0.42	$ 0.57
Diluted
Net income, Diluted (in dollars per share)	$ 0.25	$ 0.29	$ 0.40	$ 0.55
Other comprehensive income (loss), net of tax:
Recognition of net losses included in net periodic pension costs	$ 215	$ 320	$ 431	$ 496
Gain (loss) on cash flow hedging activities	(72)	52	(212)	180
Foreign currency translation adjustment	509	43	457	(7)
Other comprehensive (loss) income	(222)	225	186	323
Comprehensive income	$ 3,595	$ 4,566	$ 6,453	$ 8,499
Cash dividends per common share (in dollars per share)	$ 0.095	$ 0.0875	$ 0.19	$ 0.175
Net sales	$ 82,392	$ 65,604	$ 155,479	$ 126,591