Consolidated Statement of Cash Flow (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows from Operating Activities
Net Income	$ 3,576,937	$ 768,377
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	976,612	654,930
Loss (gain) on sale of operations		1,160,574
Loss (gain) on disposal of assets	4,294	0
Non-cash share-based compensation expense	266,042	249,167
Changes in assets and liabilities:
Decrease (Increase) in accounts receivable	(6,130,441)	1,023,256
Decrease (Increase) in inventories	(666,130)	(262,496)
Decrease (Increase) in costs and estimated earnings in excess of billings	(782,054)	(611,353)
Decrease (Increase) in prepaid expenses & other assets	148,599	(217,071)
Increase (Decrease) in accounts payable	1,997,175	717,836
Increase (Decrease) in accrued payroll and related expenses	(277,589)	136,719
Increase (Decrease) in accrued expenses	944,172	(135,701)
Increase (Decrease) in accrued income taxes	107,271	119,019
Increase (Decrease) in unearned revenue	(2,688,679)	580,858
Total adjustments	(6,100,728)	3,415,738
Net Cash Provided by (Used in) Operating Activities	(2,523,791)	4,184,115
Cash Flows from Investing Activities
Capital expenditures	(418,934)	(133,385)
Cash paid for acquisition	(50,001)
Net Cash Used in Investing Activities	(468,935)	(133,385)
Cash Flows from Financing Activities
Payments on notes	(223,993)	(142,996)
Payments on bank debt	(2,537,663)	(4,100,000)
Borrowings on bank debt	1,442,445	435,729
Payments on capital lease	(6,011)	(24,007)
Net Cash Used in Financing Activities	(1,325,222)	(3,831,274)
Net Increase (decrease) in cash and cash equivalents	(4,317,948)	219,456
Cash and cash equivalents at beginning of year	5,057,626	2,444,110
Cash and cash equivalents at end of period	739,678	2,663,566
Supplemental disclosures of cash flow information
Interest Paid	439,572	232,991
Income Taxes Paid	1,161,400	119,019
Non-cash proceeds received for Class A and Class B Common Shares in exchange for the sale of certain assets		$ 1,640,939