Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 5,773	$ 9,038
Accounts receivable, less allowance for doubtful accounts of $3,270 and $2,964, respectively	73,551	79,746
Accounts receivable - other	658	1,083
Inventories	73,844	73,379
Contract assets	38,234	38,533
Prepaid expenses and other current assets	7,395	9,934
Total current assets	199,455	211,713
Property, plant and equipment, net	33,971	32,825
Operating lease right-of-use assets	5,033	5,445
Intangible assets, net	61,582	62,536
Goodwill	36,096	36,292
Other assets	8,469	10,122
Total assets	344,606	358,933
Current liabilities:
Accounts payable	24,660	33,271
Other current liabilities	31,709	18,894
Current portion of long-term debt	11,464	15,286
Current portion of acquisition-related contingent liabilities	1,953	1,905
Total current liabilities	69,786	69,356
Long-term debt	89,662	104,003
Long-term pension liability	10,092	10,253
Long-term acquisition-related contingent liabilities	3,552	3,423
Long-term operating lease liabilities	2,133	2,380
Deferred tax liability	5,970	7,042
Other long-term liabilities	5,021	4,922
Commitments and contingencies (Note 6)
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 15,222,161 and 15,227,604 shares, respectively.	15	15
Additional paid-in capital	57,669	57,442
Retained earnings	109,086	107,581
Accumulated other comprehensive income (loss), net of tax:
Pensions	(6,876)	(7,224)
Cash flow hedges	86	91
Foreign currency translation adjustment	(1,590)	(351)
Total shareholders’ equity	158,390	157,554
Total liabilities and shareholders’ equity	$ 344,606	$ 358,933