CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (153,587)	$ (201,223)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	352,000	327,759
Amortization	14,385	13,161
Stock based compensation	11,763	10,433
Net gain on sale and disposal of property, plant and equipment	(5,750)
Loss on intangible asset abandonment		45,873
Changes in working capital components:
Trade receivables	353,963	(58,580)
Inventories	(95,743)	266,757
Prepaid expenses and other assets	(55,625)	(59,520)
Income tax receivable	(28,882)	(82,460)
Accounts payable	90,470	225,036
Accrued expenses	45,214	(17,818)
Net cash provided by (used in) operating activities	528,208	469,418
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant, equipment and construction in progress	(1,843,879)	(567,578)
Proceeds from sales of equipment	21,000
Purchases of intangibles	(22,395)	(30,276)
Purchases of short-term investments	(3,399,000)	(650,000)
Proceeds on sale of short-term investments		1,211,000
Net cash used in investing activities	(5,244,274)	(36,854)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from long-term debt	3,415,000
Payment on debt issuance costs	(139,418)
Payments on long-term debt	(10,858)
Proceeds from exercise of stock options	3,765
Net cash provided by financing activities	3,268,489
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(1,447,577)	432,564
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	2,248,466	1,936,214
CASH AND CASH EQUIVALENTS AT END OF PERIOD	800,889	2,368,778
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Construction in progress included in construction accounts payable	60,166
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	6,699
Cash received (paid) for income taxes, net of $12,700 taxes paid in 2016	$ 100,758	$ (10,805)