Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 5,172	$ 9,038
Accounts receivable, less allowance for doubtful accounts of $7,667 and $2,964, respectively	101,902	79,746
Accounts receivable - other	1,356	1,083
Inventories	89,766	73,379
Contract assets	39,231	38,533
Prepaid expenses and other current assets	11,030	9,934
Total current assets	248,457	211,713
Property, plant and equipment, net	36,644	32,825
Operating lease right-of-use assets	3,826	5,445
Intangible assets, net	58,746	62,536
Goodwill	36,116	36,292
Other assets	10,135	10,122
Total assets	393,924	358,933
Current liabilities:
Accounts payable	39,327	33,271
Other current liabilities	44,670	18,894
Current portion of long-term debt	15,286	15,286
Current portion of acquisition-related contingent liabilities	5,589	1,905
Total current liabilities	104,872	69,356
Long-term debt	72,372	104,003
Long-term pension liability	14,574	10,253
Long-term acquisition-related contingent liabilities	1,892	3,423
Long-term operating lease liabilities	1,599	2,380
Deferred tax liability	450	7,042
Other long-term liabilities	6,535	4,922
Commitments and contingencies (Note 10)
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 - 15,391,660 and 15,227,604 shares, respectively.	15	15
Additional paid-in capital	61,844	57,442
Retained earnings	141,972	107,581
Accumulated other comprehensive income (loss), net of tax:
Pensions	(10,898)	(7,224)
Cash flow hedges	69	91
Foreign currency translation adjustment	(1,372)	(351)
Total shareholders’ equity	191,630	157,554
Total liabilities and shareholders’ equity	$ 393,924	$ 358,933