Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 5,102	$ 9,038
Accounts receivable, less allowance for doubtful accounts of $6,693 and $2,964, respectively	87,064	79,746
Accounts receivable - other	819	1,083
Inventories	72,462	73,379
Contract assets	35,129	38,533
Prepaid expenses and other current assets	11,046	9,934
Total current assets	211,622	211,713
Property, plant and equipment, net	35,656	32,825
Operating lease right-of-use assets	4,595	5,445
Intangible assets, net	60,634	62,536
Goodwill	36,071	36,292
Other assets	9,592	10,122
Total assets	358,170	358,933
Current liabilities:
Accounts payable	33,275	33,271
Other current liabilities	39,348	18,894
Current portion of long-term debt	15,286	15,286
Current portion of acquisition-related contingent liabilities	2,786	1,905
Total current liabilities	90,695	69,356
Long-term debt	69,730	104,003
Long-term pension liability	9,932	10,253
Long-term acquisition-related contingent liabilities	1,742	3,423
Long-term operating lease liabilities	1,880	2,380
Deferred tax liability	4,405	7,042
Other long-term liabilities	5,311	4,922
Shareholders’ equity:
Preferred stock, $.001 par value - authorized 300,000 shares (none issued)	0	0
Common stock, $.001 par value - authorized 50,000,000 shares, issued and outstanding 15,231,781 and 15,227,604 shares, respectively.	15	15
Additional paid-in capital	58,381	57,442
Retained earnings	124,243	107,581
Accumulated other comprehensive income (loss), net of tax:
Pensions	(6,492)	(7,224)
Cash flow hedges	80	91
Foreign currency translation adjustment	(1,752)	(351)
Total shareholders’ equity	174,475	157,554
Total liabilities and shareholders’ equity	$ 358,170	$ 358,933