STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES
Net Income	$ 514,965	$ 583,051
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	45,845	33,222
Deferred income taxes	39,000	(244,000)
Bad debt expense	125,405	131,454
Gain on sale of asset	0	(1,500)
Stock issued for services to non-employee	14,097	0
Stock compensation expense	34,438	0
Changes in operating assets and liabilities:
Accounts receivable	546,167	(471,201)
Inventory	(295,958)	377,026
Prepaid expenses and other assets	611,239	11,186
Accounts payable and accrued expenses	(184,617)	99,149
Payroll liabilities	4,303	2,285
Contract liabilities and customer deposits	(1,306,496)	555,899
Income taxes receivable (payable)	(9,600)	238,483
Net cash provided by operating activities	138,788	1,315,054
INVESTING ACTIVITIES
Capital expenditures	(50,715)	(38,875)
Proceeds from sale of asset	0	1,500
Net cash used in investing activities	(50,715)	(37,375)
FINANCING ACTIVITIES
Payments on note payable	(7,779)	(57,625)
Repurchase of common stock	(112,240)	0
Net cash used in financing activities	(120,019)	(57,625)
NET INCREASE (DECREASE) IN CASH	(31,946)	1,220,054
CASH
Beginning of period	1,322,743	102,689
End of Period	1,290,797	1,322,743
Non-cash investing and financing activities:
Treasury stock cost related to compensation	62,026	0
Capital expenditure financed with note payable	$ 10,000	$ 32,435