Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents		$ 6,824	$ 5,362
Accounts receivable, less allowance for doubtful accounts of $2,004 and $2,042, respectively		63,610	64,017
Accounts receivable - other		1,431	1,744
Inventory, Net, Total	[1]	65,753	67,301
Contract assets		47,359	49,236
Prepaid expenses and other current assets		11,488	9,552
TOTAL CURRENT ASSETS		196,465	197,212
PROPERTY, PLANT AND EQUIPMENT, NET		29,388	28,769
OPERATING LEASE RIGHT-OF-USE ASSETS		4,581
OTHER INTANGIBLE ASSETS, NET		65,389	66,312
GOODWILL		33,955	33,961
OTHER ASSETS		9,796	8,832
		339,574	335,086
CURRENT LIABILITIES:
Accounts payable		24,802	24,685
Other current liabilites		15,703	14,767
Current portion of long-term debt		15,286	6,000
Current portion of acquisition-related contingent liabilities		941	941
TOTAL CURRENT LIABILITIES		56,732	46,393
LONG-TERM DEBT		101,931	111,522
LONG-TERM PENSION LIABILITY		8,643	8,705
LONG-TERM ACQUISITION-RELATED CONTINGENT LIABILITIES		5,622	5,422
OPERATING LEASE LIABILITIES		2,866
DEFERRED TAX LIABILITY		7,365	8,475
OTHER LONG-TERM LIABILITIES		4,690	3,648
COMMITMENTS AND CONTINGENCIES (NOTE 5)
SHAREHOLDERS' EQUITY:
Preferred stock, $.001 par value - authorized 300,000 shares (none issued)
Common stock, $.001 par value - authorized 50,000,000 shares, issued and outstanding - 15,229,775 and 15,202,387, respectively.		15	15
Additional paid-in capital		56,536	55,859
Retained earnings		102,945	103,032
Accumulated other comprehensive income (loss), net of tax:
Pensions		(7,426)	(7,673)
Cash flow hedges		108	113
Foreign currency translation adjustment		(453)	(425)
TOTAL SHAREHOLDERS' EQUITY		151,725	150,921
		$ 339,574	$ 335,086

[1] Inventories consist of the following: March 31, 2019 December 31, (Unaudited) 2018 Finished goods $ 56,552 $ 58,196 Work in process 527 650 Raw materials 8,674 8,455 $ 65,753 $ 67,301