Statements of Changes in Stockholders' Equity - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2016		$ 793	$ 14,128,837		$ (7,719,352)	$ 6,410,278
Balance, shares at Dec. 31, 2016		7,927,774
Stock warrants vested-TEC (f/k/a MREC), related party			1,516,246			1,516,246
Stock warrants repurchased-TEC (f/k/a MREC), related party			(773,495)			(773,495)
Stock based compensation			167,475			167,475
Stock options repurchased			(84,500)			$ (84,500)
Stock options repurchased, shares						23,467
Treasury stock				(112,109)		$ (112,109)
Treasury stock cancelled, shares						23,467
Net income					3,262,282	$ 3,262,282
Balance at Dec. 31, 2017		$ 793	14,954,563	(112,109)	(4,457,070)	10,386,177
Balance, shares at Dec. 31, 2017		7,927,774
Stock based compensation			7,124			7,124
Stock options repurchased			(242,625)			$ (242,625)
Stock options repurchased, shares						98,063
Treasury stock				(381,937)		$ (381,937)
Stock options exercised		$ 1	10,499			10,500
Stock options exercised, shares		10,700
Treasury stock cancelled		$ (11)	(456,727)	456,738
Treasury stock cancelled, shares		(110,823)				87,356
Net income					818,092	$ 818,092
Balance at Dec. 31, 2018		$ 783	$ 14,272,834	$ (37,308)	$ (3,638,978)	$ 10,597,331
Balance, shares at Dec. 31, 2018		7,827,651