CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net Income	$ 230,701	$ 40,617
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	23,400	12,734
Deferred income taxes	91,000	33,000
Bad debt expense	68,303	105,082
Gain on sale of asset		(1,500)
Stock issued for services to non-employee	11,250
Stock compensation expense	14,688
Changes in operating assets and liabilities:
Accounts receivable	312,867	(589,796)
Inventory	(23,820)	178,710
Prepaid expenses and other assets	225,761	361,515
Accounts payable and accrued expenses	(351,595)	(129,783)
Payroll liabilities	20,095	62,320
Contract liabilities and customer deposits	(773,689)	(74,844)
Income taxes (receivable) payable	(146,400)	157,566
Net cash provided by (used in) operating activities	(297,439)	155,621
INVESTING ACTIVITIES
Capital expenditures	(20,615)	(8,875)
Proceeds from sale of asset	0	1,500
Net cash used in investing activities	(20,615)	(7,375)
FINANCING ACTIVITIES
Payments on notes payable	0	(3,573)
Repurchase of common stock	(112,240)	0
Net cash used in financing activities	(112,240)	(3,573)
NET INCREASE (DECREASE) IN CASH	(430,294)	144,673
CASH
Beginning of period	1,322,743	102,689
End of Period	892,449	247,362
Non-cash investing and financing activities:
Treasury stock cost related to compensation	61,849	0
Capital expenditure financed with note payable	$ 0	$ 32,435