Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
OPERATING ACTIVITIES:
Net income	$ 10,698,000	$ 18,895,000	$ 8,240,000
Adjustment for loss (income) from discontinued operations	1,700,000	(4,715,000)	(762,000)
Income from continuing operations	12,398,000	14,180,000	7,478,000
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation	2,346,000	1,549,000	1,462,000
Amortization	1,373,000	671,000	548,000
Amortization of deferred financing costs	191,000	94,000	83,000
Stock-based compensation	1,004,000	768,000	545,000
Excess tax benefit on stock compensation			(132,000)
(Gain) loss on foreign exchange contracts	(139,000)	825,000	90,000
Provisions for losses on accounts receivable	103,000	29,000	46,000
Deferred compensation and supplemental retirement benefits	99,000	327,000	313,000
Deferred compensation and supplemental retirement benefit payments	(382,000)	(440,000)	(503,000)
Deferred income taxes	2,921,000	1,615,000	153,000
(Gain) on sale of available-for-sale securities		(1,691,000)
(Gain) on sale of property, plant and equipment		(1,127,000)
Goodwill impairment	0	0	5,055,000
Changes in operating assets and liabilities:
Accounts receivable	5,047,000	(5,129,000)	(1,028,000)
Inventories	2,253,000	(388,000)	(725,000)
Other assets	(2,433,000)	963,000	(1,729,000)
Accounts payable	230,000	2,130,000	(1,860,000)
Other accrued liabilities	(1,345,000)	1,321,000	3,368,000
Accrued income taxes	(2,386,000)	4,152,000	494,000
Net cash provided by operating activities from continuing operations	21,280,000	19,849,000	13,658,000
Net cash (used in) operating activities from discontinued operations	(11,176,000)	(9,920,000)	(3,959,000)
NET CASH PROVIDED BY OPERATING ACTIVITIES	10,104,000	9,929,000	9,699,000
INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(3,679,000)	(2,850,000)	(2,434,000)
Proceeds from sale of property, plant and equipment		1,657,000
Acquisition of a business, net of cash acquired	(30,608,000)	(3,973,000)
Purchases of available-for-sale securities			(2,362,000)
Proceeds from sale of available-for-sale securities		4,054,000
Purchases of other assets	(416,000)	(379,000)	(320,000)
Net cash (used in) investing activities from continuing operations	(34,703,000)	(1,491,000)	(5,116,000)
Net cash provided by (used in) investing activities from discontinued operations	835,000	17,783,000	(416,000)
NET CASH (USED IN) PROVIDED BY INVESTING ACTIVITIES	(33,868,000)	16,292,000	(5,532,000)
FINANCING ACTIVITIES:
Proceeds from Senior Revolving Credit Facility	23,000,000		25,490,000
Payments of Senior Revolving Credit Facility	(9,500,000)	(1,000,000)	(24,490,000)
Payments of deferred financing costs	(182,000)	(45,000)	(42,000)
Repurchase and retirement of common stock	(6,796,000)
Treasury stock purchases	(3,511,000)	(106,000)	(2,079,000)
Proceeds from stock options exercised	140,000		743,000
Excess tax benefit on stock compensation			132,000
Net cash provided by (used in) financing activities from continuing operations	3,151,000	(1,151,000)	(246,000)
Net cash (used in) financing activities from discontinued operations		(235,000)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	3,151,000	(1,386,000)	(246,000)
Effect of exchange rate changes on cash	(360,000)	(48,000)	46,000
NET CHANGE IN CASH AND CASH EQUIVALENTS	(20,973,000)	24,787,000	3,967,000
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	31,950,000	7,163,000	3,196,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 10,977,000	$ 31,950,000	$ 7,163,000