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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Current Assets:    
Cash and cash equivalents $ 75,288 $ 72,289
Accounts receivable, net of allowance for doubtful accounts of $1,218 and $1,171, respectively 78,346 76,092
Inventories 104,726 107,276
Unbilled receivables 15,334 16,318
Assets held for sale 2,454 0
Other current assets 9,224 11,206
Total current assets 285,372 283,181
Property, plant and equipment, net 37,334 41,943
Right-of-use assets 16,627 18,504
Intangible assets, net 68,466 72,364
Goodwill 22,252 21,993
Deferred income taxes 4,071 3,731
Other assets 27,021 27,201
Total assets 461,143 468,917
Current Liabilities:    
Accounts payable 44,826 44,169
Accrued expenses 28,402 26,918
Current portion of long-term debt 2,305 5,489
Operating lease liability, current 6,467 7,377
Other current liabilities 6,179 6,265
Total current liabilities 88,179 90,218
Long-term Liabilities:    
Long-term debt 132,937 138,215
Operating lease liability, long-term 10,469 11,751
Liability for uncertain tax positions 27,075 26,901
Minimum pension obligation and unfunded pension liability 21,944 21,545
Deferred income taxes 1,145 1,726
Other liabilities 11,466 10,510
Total liabilities 293,215 300,866
Commitments and contingencies
Stockholders' Equity:    
Preferred stock, no par value, 1,000,000 shares authorized; none issued 0 0
Additional paid-in capital 35,036 33,826
Retained earnings 157,157 157,063
Accumulated other comprehensive loss (25,502) (24,065)
Total stockholders' equity 167,928 168,051
Total liabilities and stockholders' equity 461,143 468,917
Common Class A [Member]    
Stockholders' Equity:    
Common stock 214 214
Common Class B [Member]    
Stockholders' Equity:    
Common stock $ 1,023 $ 1,013