Condensed Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 3,262,282	$ 2,050,022
Adjustments to reconcile net income to net cash provided (used) in operating activities
Impairment loss on MREC	613,241
Depreciation and amortization	270,881	192,602
Stock compensation	167,475	181,786
Cash settlement of stock options	160,050	341,838
Treasury stock cancelled		2,981
Changes in operating assets and liabilities:
Accounts receivable	1,766,716	(898,711)
Inventory	(400,494)	(417,302)
Deferred taxes	(2,710,182)
Unbilled revenue	(1,114,750)
Prepaid expenses and other current assets	(336,372)	(305,743)
Accounts payable and other accrued expenses	92,930	65,343
Deferred revenue and deferred rent	880,325	542,064
Net cash provided by operating activities	2,652,101	1,754,880
Cash flows from investing activities:
Investment in MREC		(335,349)
Asset purchase - Profiles Tools, net of shop supplies		(185,450)
Purchase of property and equipment	(133,831)	(309,535)
Net cash used in investing activities	(133,831)	(830,334)
Cash flows from financing activities:
Repayment of debt	(11,250)
Proceeds from option exercises		16,351
Purchase of treasury stock	(112,109)
Repurchase of stock options	(244,550)	(554,338)
Repurchase of stock warrants	(773,495)
Net cash used in financing activities	(1,141,404)	(537,987)
Net increase in cash	1,376,866	386,559
Cash, beginning of period	3,703,579	3,317,020
Cash, end of period	5,080,445	3,703,579
Cash paid:
Taxes	78,000	102,753
Supplemental disclosure of non-cash investing and financing activities:
Investment in MREC	$ 1,516,246