Balance Sheets - USD ($)	Mar. 31, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 6,505,141	$ 6,293,293
Short-term investments	493,821	2,480,753
Trade accounts receivable, net	1,875,783	1,637,165
Inventory	1,597,958	2,518,256
Prepaid expenses and other current assets	475,079	259,566
Total current assets	10,947,782	13,189,033
PROPERTY, PLANT AND EQUIPMENT, net	26,173,301	25,265,738
RESTRICTED CASH	1,400,191
OPERATING LEASE RIGHT-OF-USE ASSET	1,305,450
INTANGIBLE ASSETS, net	109,848	114,624
GOODWILL	95,557	95,557
OTHER ASSETS	22,145	26,884
TOTAL ASSETS	40,054,274	38,691,836
CURRENT LIABILITIES:
Accounts payable and accrued expenses	1,196,477	1,220,566
Current portion of bank debt	572,197	1,274,790
Current portion of operating lease liability	93,249
Total current liabilities	1,861,923	2,495,356
LONG-TERM LIABILITIES:
Bank debt, net of current portion	7,988,351	7,146,676
Operating lease liability, net of current portion	1,213,690
Interest rate swaps		58,526
Total long-term liabilities	9,202,041	7,205,202
TOTAL LIABILITIES	11,063,964	9,700,558
CONTINGENT LIABILITIES AND COMMITMENTS (See Note 11)
STOCKHOLDERS' EQUITY:
Common stock, $0.10 par value per share, 11,000,000 shares authorized, 7,299,009 shares issued and 7,212,919 shares outstanding, as of March 31, 2020 and December 31, 2019	729,901	729,901
Additional paid-in capital	31,209,297	31,131,893
Accumulated deficit	(2,760,552)	(2,638,285)
Treasury stock, at cost, 86,090 shares as of March 31, 2020 and December 31, 2019	(188,336)	(188,336)
Accumulated other comprehensive loss		(43,895)
Total stockholders' equity	28,990,310	28,991,278
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 40,054,274	$ 38,691,836