Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Current assets
Cash	$ 4,346,466	$ 4,264,767
Accounts receivable, net	2,937,032	2,273,189
Prepaid expenses	110,869	133,607
Inventories	1,231,753	1,003,623
Total current assets	8,626,120	7,675,186
Property, plant and equipment, net	8,165,336	8,226,009
Intangible assets, net	3,074,444	3,686,111
Other noncurrent assets	51,887	51,887
Total assets	19,917,787	19,639,193
Current liabilities
Accounts payable	1,345,440	721,361
Accrued expenses	904,687	631,860
Current portion of long-term debt, net of discounts	4,357,957	4,578,759
Total current liabilities	6,608,084	5,931,980
Long-term debt, less current portion, net of discounts	5,963,508	6,296,994
Total liabilities	12,571,592	12,228,974
Commitments and contingencies (Note 10)
Shareholders' equity
Common stock - $0.001 par value; 100,000,000 shares authorized; 25,018,098 shares issued and outstanding	25,018	25,018
Additional paid-in-capital	39,622,463	39,440,611
Accumulated deficit	(32,301,286)	(32,055,410)
Total shareholders' equity	7,346,195	7,410,219
Total liabilities and shareholders' equity	$ 19,917,787	$ 19,639,193