CONDENSED BALANCE SHEETS (Unaudited) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash	$ 633,753	$ 1,322,743
Accounts receivable, net of allowance for doubtful accounts of $125,027 at September 30, 2018 and $181,473 at December 31, 2017	3,518,573	3,053,280
Inventory	503,034	466,207
Prepaid expenses and other current assets	424,596	464,385
Income tax receivable	65,373	0
TOTAL CURRENT ASSETS	5,145,329	5,306,615
LONG-TERM ASSETS
Property and equipment, net	57,679	71,786
Contract and other long-term assets	599,538	967,092
Long-term accounts receivable - financed contracts	1,163,823	1,515,120
TOTAL LONG-TERM ASSETS	1,821,040	2,553,998
TOTAL ASSETS	6,966,369	7,860,613
CURRENT LIABILITIES
Accounts payable and accrued expenses	176,117	572,485
Payroll liabilities	57,593	30,085
Customer deposits	114,393	18,168
Income taxes payable	0	62,627
TOTAL CURRENT LIABILITIES	348,103	683,365
LONG-TERM LIABILITIES
Contract liabilities	1,903,639	3,313,772
Deferred tax liability	751,000	516,000
TOTAL LIABILITIES	3,002,742	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 September 30, 2018 and December 31, 2017, respectively	4,518	4,512
Additional paid-in capital	1,790,315	1,809,511
Retained earnings	2,374,922	1,679,813
TOTAL STOCKHOLDERS' EQUITY BEFORE TREASURY STOCK	4,169,755	3,493,836
Treasury stock, 138,132 and 144,769 shares (at cost) at September 30, 2018 and December 31, 2017, respectively	(206,128)	(146,360)
TOTAL STOCKHOLDERS' EQUITY	3,963,627	3,347,476
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 6,966,369	$ 7,860,613