CONDENSED BALANCE SHEETS - USD ($)	Sep. 30, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 917,032	$ 2,248,466
Short-term investments	3,399,000
Trade receivables, less allowance of $52,000 in 2016 and $122,000 in 2015	2,154,232	2,165,194
Inventories	2,079,133	2,119,805
Prepaid expenses and other assets	178,521	85,648
Income taxes receivable	71,779	102,778
Total current assets	8,799,697	6,721,891
PROPERTY, PLANT, AND EQUIPMENT, at cost:
Land and building	9,189,743	6,391,555
Machinery and equipment	4,904,353	4,275,910
Office equipment	1,157,909	933,596
Vehicles	272,144	272,141
Construction in progress	398,725	2,491,432
Gross property, plant, and equipment, at cost	15,922,874	14,364,634
Less accumulated depreciation	(6,892,090)	(6,407,304)
Net property, plant, and equipment, at cost	9,030,784	7,957,330
INTANGIBLE ASSETS, less accumulated amortization of $142,593 in 2016 and $123,957 in 2015	343,302	336,096
Total assets	18,173,783	15,015,317
CURRENT LIABILITIES:
Current portion of long-term debt	126,419
Accounts payable - Trade	747,241	420,245
Accounts payable - Construction	8,778	333,339
Accrued compensation	253,228	350,518
Other accrued liabilities	97,192	31,000
Total current liabilities	1,232,858	1,135,102
LONG-TERM LIABILITIES
Long-term debt less current portion	3,109,647
Deferred income taxes	385,000	385,000
Total long-term liabilities	3,494,647	385,000
Total liabilities	4,727,505	1,520,102
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 2,018,753 shares in 2016 and 2,018,253 in 2015	201,875	201,825
Additional paid-in capital	2,725,384	2,703,050
Retained earnings	10,519,019	10,590,340
Total stockholders' equity	13,446,278	13,495,215
Total liabilities and stockholders' equity	$ 18,173,783	$ 15,015,317