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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Current Assets:    
Cash and cash equivalents $ 15,593 $ 18,331
Marketable securities 50,828 5,791
Accounts receivable, net of allowances of $190 and $189, respectively 5,031 4,122
Inventories, net 5,260 5,280
Prepaid expenses and other current assets 414 257
Total Current Assets 77,126 33,781
Property, plant and equipment:    
Land 536 536
Buildings and improvements 4,869 4,810
Machinery and equipment 18,475 17,775
Gross property, plant and equipment 23,880 23,121
Less: accumulated depreciation (20,697) (20,336)
Net property, plant, and equipment 3,183 2,785
Right-of-use lease assets 324 422
Equity investment in unconsolidated subsidiary   3,072
Intangible assets, net 271 327
Deferred income tax asset 20 3,052
Other assets 7 16
Total Assets 80,931 43,455
Current Liabilities:    
Accounts payable 1,388 1,265
Accrued compensation and commissions 994 1,324
Other accrued expenses 574 808
Total Current Liabilities 2,956 3,397
Deferred income tax liability 6,057  
Long-term lease liabilities 217 293
Total Liabilities 9,230 3,690
Contingencies (Note O)
Stockholders’ Equity    
Common stock, $0.01 par value - 10,000,000 shares authorized; 5,391,300 shares issued and 5,280,204 shares outstanding at September 30, 2021, and 5,409,550 shares issued and 5,272,204 shares outstanding at December 31, 2020 53 53
Additional paid-in capital 45,624 45,477
Retained earnings (accumulated deficit) 26,604 (5,185)
Treasury stock, 81,584 shares held in treasury at cost at September 30, 2021 and December 31, 2020 (580) (580)
Total Stockholders' Equity 71,701 39,765
Total Liabilities and Stockholders' Equity $ 80,931 $ 43,455