Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 9,038	$ 5,362
Accounts receivable, less allowance for doubtful accounts of $2,964 and $2,042, respectively	79,746	64,017
Accounts receivable - other	1,083	1,744
Inventories	73,379	70,203
Contract assets	38,533	49,236
Prepaid expenses and other current assets	9,934	6,650
Total current assets	211,713	197,212
Property, plant and equipment, net	32,825	28,769
Operating lease right-of-use assets	5,445
Intangible assets, net	62,536	66,312
Goodwill	36,292	33,961
Other assets	10,122	8,832
Total assets	358,933	335,086
Current liabilities:
Accounts payable	33,271	24,685
Other current liabilities	18,894	14,767
Current portion of long-term debt	15,286	6,000
Current portion of acquisition-related contingent liabilities	1,905	941
Total current liabilities	69,356	46,393
Long-term debt	104,003	111,522
Long-term pension liability	10,253	8,705
Long-term acquisition-related contingent liabilities	3,423	5,422
Long-term operating lease liabilities	2,380
Deferred tax liability	7,042	8,475
Other long-term liabilities	4,922	3,648
Commitments and contingencies (Note 11)
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 - 15,227,604 and 15,202,387 shares, respectively.	15	15
Additional paid-in capital	57,442	55,859
Retained earnings	107,581	103,032
Accumulated other comprehensive income (loss), net of tax:
Pensions	(7,224)	(7,673)
Cash flow hedges	91	113
Foreign currency translation adjustment	(351)	(425)
Total shareholders’ equity	157,554	150,921
Total liabilities and shareholders’ equity	$ 358,933	$ 335,086