Balance Sheets - USD ($)	Mar. 31, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 6,806,650	$ 6,949,937
Short-term investments		996,495
Trade accounts receivable, net	2,390,205	1,796,801
Inventory	2,122,450	2,092,514
Prepaid expenses and other current assets	490,532	321,261
Total current assets	11,809,837	12,157,008
PROPERTY, PLANT AND EQUIPMENT, net	26,409,384	26,754,975
OPERATING LEASE RIGHT-OF-USE ASSET	1,192,554	1,220,361
GOODWILL	95,557	95,557
INTANGIBLE ASSETS, net	90,744	95,520
OTHER ASSETS	23,386	26,173
TOTAL ASSETS	39,621,462	40,349,594
CURRENT LIABILITIES:
Current portion of debt obligations	767,517	760,337
Current portion of operating lease liability	102,387	100,512
Accounts payable and accrued expenses	1,228,361	1,350,227
Total current liabilities	2,098,265	2,211,076
LONG-TERM LIABILITIES:
Debt obligations, net of current portion	8,543,825	8,737,149
Operating lease liability, net of current portion	1,108,166	1,135,169
Total long-term liabilities	9,651,991	9,872,318
TOTAL LIABILITIES	11,750,256	12,083,394
CONTINGENT LIABILITIES AND COMMITMENTS (See Note 11)
STOCKHOLDERS' EQUITY:
Common stock, $0.10 par value per share, 15,000,000 and 15,000,000 shares authorized, 7,299,009 and 7,299,009 shares issued and 7,220,836 and 7,218,836 shares outstanding, as of March 31, 2021 and December 31, 2020, respectively	729,901	729,901
Additional paid-in capital	31,414,027	31,372,093
Accumulated deficit	(4,101,705)	(3,660,402)
Treasury stock, at cost, 78,173 and 80,173 shares as of March 31, 2021 and December 31, 2020, respectively	(171,017)	(175,392)
Total stockholders' equity	27,871,206	28,266,200
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 39,621,462	$ 40,349,594