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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (2,812,519)	$ (934,716)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	256,284	209,261
Amortization of debt issuance cost	35,437	36,953
Cash expended in excess of rent expense	(38,644)	(28,012)
Stock-based compensation	347,185	330,787
Bad debt expense	(51,369)
Changes in operating assets and liabilities:
Decrease in accounts receivable	973,002	2,139,417
Increase in contract assets	(533,743)	(2,189,888)
Increase in inventory	(1,048,752)	(1,378,998)
Decrease in prepaid expenses and other assets	26,549	541,791
Decrease in refundable income taxes	1,506
Increase in accounts payable and accrued expenses	735,282	1,993,200
Increase (decrease) in contract liabilities	1,187,667	(2,353,926)
Decrease in loss reserve	(505,407)	(626,876)
Decrease in income taxes payable		(71,871)
Net cash used in operating activities	(1,427,522)	(2,332,878)
Cash flows from investing activities:
Purchase of property and equipment	(3,200)	(210,695)
Net cash used in investing activities	(3,200)	(210,695)
Cash flows from financing activities:
Payments on long-term debt	(622,690)	(603,037)
Payments on line of credit		(300,000)
Stock offering costs paid		(64,371)
Net cash used in financing activities	(622,690)	(967,408)
Net decrease in cash and restricted cash	(2,053,412)	(3,510,981)
Cash and restricted cash at beginning of period	5,432,793	6,128,142
Cash and restricted cash at end of period	3,379,381	2,617,161
Cash (received) paid during the period for:
Interest	450,191	551,635
Income taxes	$ (928)	90,202
Equipment acquired under financing lease		$ 399,800

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