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Condensed Consolidated Balance Sheets (Unaudited) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Current Assets:    
Cash and cash equivalents $ 965,148 $ 800,894
Certificates of deposit 6,067,000 6,565,000
Accounts receivable, net [1] 6,111,917 5,438,332
Inventories, net 4,919,704 4,538,212
Prepaid income taxes   273,112
Other current assets 386,448 383,953
Total current assets 18,450,217 17,999,503
Property, Plant and Equipment:    
Land 923,587 923,587
Land improvements 358,395 358,395
Buildings and improvements 7,531,420 7,271,006
Production equipment and other 33,378,011 33,295,529
Property, Plant and Equipment Gross 42,191,413 41,848,517
Less accumulated depreciation 30,192,944 30,150,074
Net property, plant and equipment 11,998,469 11,698,443
Total assets 30,448,686 29,697,946
Current Liabilities:    
Accounts payable 1,420,080 768,111
Accrued wages and salaries 633,925 611,484
Other accrued expenses 337,372 465,662
Unearned revenue and customer deposits 448,189 467,189
Total current liabilities 2,839,566 2,312,446
Deferred income taxes 886,084 894,084
Total liabilities 3,725,650 3,206,530
Shareholders' Equity:    
Preferred stock [2] 0 0
Common stock [3] 1,138,096 1,138,096
Additional paid-in capital 447,134 447,134
Retained earnings 29,059,904 28,828,284
Less: Treasury stock [4] 3,922,098 3,922,098
Total shareholders' equity 26,723,036 26,491,416
Total liabilities and shareholders' equity $ 30,448,686 $ 29,697,946
[1] Net of allowance of $150,000.
[2] No par value, 500,000 shares authorized, none outstanding.
[3] $1.00 par value, 4,000,000 shares authorized, 1,138,096 shares issued, 966,132 shares outstanding.
[4] At cost, 171,964 shares.