Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash	$ 145,791	$ 76,194
Accounts receivable - net	1,560,958	1,573,600
Inventories	929,698	962,783
Prepaid expenses	720,515	688,259
Total current assets	3,356,962	3,300,836
Property and equipment:
Equipment	2,878,293	2,872,494
Leasehold improvements	1,180,637	1,180,050
Construction and equipment in progress	109,815	119,340
Total	4,168,745	4,171,844
Less accumulated depreciation and amortization	1,474,003	1,399,435
Net property and equipment	2,694,742	2,772,449
Deferred tax asset	4,666,910	4,817,309
Deferred contract cost	698,935	698,935
Goodwill	278,466	278,466
Operating lease right of use assets	4,475,106	0
Other assets including long-term portion of receivables-net	4,050,439	3,808,957
Total assets	20,221,560	15,676,952
Current liabilities:
Current portion of term loan payable to bank	871,429	871,429
Accounts payable and accrued expenses	253,271	523,315
Current portion of operating lease liability	312,739	0
Total current liabilities	1,437,439	1,394,744
Long-term obligations:
Term loans payable to bank (net of current portion)	3,705,579	3,898,733
Convertible notes payable	1,496,906	1,539,204
Operating lease liabilities - net of short-term portion	4,263,420	0
Deferred contract income	698,935	698,935
Total long-term liabilities	10,164,840	6,136,872
Stockholders' equity:
Common stock - no par value (40,000,000 shares authorized, 21,583,032 issued and outstanding as of December 31, 2018 and 21,683,032 as of March 31, 2019)	24,789,482	24,739,482
Accumulated deficit	(16,170,201)	(16,594,146)
Total stockholders' equity	8,619,281	8,145,336
Total liabilities and stockholders' equity	$ 20,221,560	$ 15,676,952