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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 33,094 $ 24,234
Receivables, net 32,456 26,428
Inventories 21,674 18,642
Prepaid expenses and other current assets 3,077 2,560
Refundable income taxes 832 0
Total current assets 91,133 71,864
Property, plant and equipment 122,184 118,388
Less accumulated depreciation and amortization (69,202) (64,633)
Net property, plant and equipment 52,982 53,755
Goodwill 51,838 51,838
Intangible assets, net 18,776 19,718
Non-qualified deferred compensation plan 4,115 3,724
Finance lease right of use assets 88 100
Operating lease right of use assets 1,555 2,052
Other assets 199 153
Total assets 220,686 203,204
Current liabilities:    
Accounts payable 7,556 4,121
Accrued expenses 8,361 7,944
Deferred revenue 1,671 1,887
Finance lease liabilities 15 15
Operating lease liabilities 1,157 1,154
Income taxes payable 0 16
Total current liabilities 18,760 15,137
Deferred income taxes 5,539 5,057
Non-qualified deferred compensation plan 4,053 3,810
Finance lease liabilities 74 86
Operating lease liabilities 436 950
Other liabilities 1,071 1,271
Total liabilities 29,933 26,311
Commitments and contingencies
Stockholders’ equity:    
Preferred stock, $.01 par value, 1,000,000 shares authorized; no shares issued 0 0
Common stock, $.01 par value, 20,000,000 shares authorized; 7,560,963 and 7,531,404 shares issued and outstanding, respectively, at September 30, 2021; 7,529,625 and 7,500,066 shares issued and outstanding, respectively, at December 31, 2020 75 75
Additional paid-in capital 33,677 32,484
Retained earnings 157,588 144,921
Treasury stock at cost, 29,559 shares at September 30, 2021 and 29,559 shares at December 31, 2020 (587) (587)
Total stockholders’ equity 190,753 176,893
Total liabilities and stockholders' equity $ 220,686 $ 203,204