CONDENSED BALANCE SHEETS (Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash	$ 892,449	$ 1,322,743
Accounts receivable, net of allowance for doubtful accounts of $125,027 at June 30, 2018 and $181,473 at December 31, 2017	3,026,118	3,053,280
Inventory	490,027	466,207
Prepaid expenses and other current assets	569,657	464,385
Income tax receivable	83,773	0
TOTAL CURRENT ASSETS	5,062,024	5,306,615
LONG-TERM ASSETS
Property and equipment, net	69,001	71,786
Contract and other long-term assets	636,059	967,092
Long-term accounts receivable - financed contracts	1,161,112	1,515,120
TOTAL LONG-TERM ASSETS	1,866,172	2,553,998
TOTAL ASSETS	6,928,196	7,860,613
CURRENT LIABILITIES
Accounts payable and accrued expenses	220,890	572,485
Payroll liabilities	50,180	30,085
Customer deposits	610,619	18,168
Income taxes payable	0	62,627
TOTAL CURRENT LIABILITIES	881,689	683,365
LONG-TERM LIABILITIES
Contract liabilities	1,947,632	3,313,772
Deferred tax liability	607,000	516,000
TOTAL LIABILITIES	3,436,321	4,513,137
STOCKHOLDERS' EQUITY
Common stock, $0.001 par value; 25,000,000 shares authorized: 4,656,734 shares issued; 4,518,602 and 4,511,965 shares outstanding at June 30, 2018 and December 31, 2017, respectively	4,518	4,512
Additional paid-in capital	1,782,971	1,809,511
Retained earnings	1,910,514	1,679,813
Stockholders' Equity before Treasury Stock	3,698,003	3,493,836
Treasury stock, 138,132 and 144,769 shares (at cost) at June 30, 2018 and December 31, 2017, respectively	(206,128)	(146,360)
TOTAL STOCKHOLDERS' EQUITY	3,491,875	3,347,476
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 6,928,196	$ 7,860,613