Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 1,623,137	$ 929,700
Short-term investments	2,695,000	2,895,000
Trade receivables, less allowance of $53,000 in 2018 and 2017	2,215,215	2,190,260
Inventories	2,046,588	2,086,065
Prepaid expenses and other assets	375,362	168,242
Income taxes receivable	2,768	2,116
Total current assets	8,958,070	8,271,383
PROPERTY, PLANT, AND EQUIPMENT, at cost:
Land and building	9,500,429	9,207,790
Machinery and equipment	4,964,816	4,968,595
Office equipment	1,559,728	1,573,191
Vehicles	245,679	245,679
Property, plant, and equipment, Gross	16,270,652	15,995,255
Less accumulated depreciation	(8,185,910)	(7,693,594)
Total property, plant and equipment at cost	8,084,742	8,301,661
INTANGIBLE ASSETS, less accumulated amortization of $149,740 in 2018 and $174,991 in 2017	376,406	351,186
Total assets	17,419,218	16,924,230
CURRENT LIABILITIES
Current portion of long-term debt	129,282	130,899
Accounts payable	647,528	321,860
Accrued compensation	366,900	360,554
Other accrued liabilities	159,821	62,468
Total current liabilities	1,303,531	875,781
LONG-TERM LIABILTIES
Long-term debt, less current portion	2,821,657	2,946,518
Deferred income taxes	183,000	144,000
Total long-term liabilities	3,004,657	3,090,518
Total liabilities	4,308,188	3,966,299
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Preferred stock, par value $.10 per share; authorized 250,000 shares; issued none
Common stock, par value $.10 per share; authorized 4,750,000 shares; issued and outstanding 1,983,553 shares in 2018 and 2017.	198,355	198,355
Additional paid-in-capital	2,723,024	2,709,390
Retained earnings	10,189,651	10,050,186
Total stockholders' equity	13,111,030	12,957,931
Total liabilities and stockholders' equity	$ 17,419,218	$ 16,924,230