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Consolidated Balance Sheets - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Current Assets:    
Cash and cash equivalents $ 353,475 $ 800,894
Certificates of deposit 8,059,000 6,565,000
Accounts receivable, net [1] 5,323,519 5,438,332
Inventories, net 4,537,693 4,538,212
Prepaid income taxes 56,112 273,112
Other current assets 423,952 383,953
Total current assets 18,753,751 17,999,503
Property, plant and equipment, net 12,450,558 11,698,443
Total assets 31,204,309 29,697,946
Current Liabilities:    
Accounts payable 703,467 768,111
Accrued wages and salaries 690,526 611,484
Other accrued expenses 604,174 465,662
Unearned revenue and customer deposits 286,133 467,189
Total current liabilities 2,284,300 2,312,446
Deferred income taxes, net 1,028,084 894,084
Total liabilities 3,312,384 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 30,228,793 28,828,284
Less: Treasury stock [4] 3,922,098 3,922,098
Total shareholders' equity 27,891,925 26,491,416
Total liabilities and shareholders' equity $ 31,204,309 $ 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.