Restatement of Previously Issued Financial Statements (Details 6) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Total Net Sales	$ 5,054,000	$ 4,435,000	$ 3,347,000	$ 4,646,000	$ 6,175,000	$ 4,549,000	$ 5,727,000	$ 5,077,000	$ 17,482,000	$ 21,528,000
Cost of services	3,981,000	3,764,000	2,807,000	3,382,000	4,224,000	3,514,000	4,044,000	3,974,000
Cost of goods sold	41,000	112,000	208,000	172,000	498,000	214,000	333,000	392,000	14,467,000	17,193,000
Impairment loss - services	0	0	0	159,000	0	0	0	0	159,000	2,014,000
Total Cost of Sales	4,022,000	3,876,000	3,015,000	3,713,000	4,722,000	3,728,000	4,377,000	4,366,000	14,626,000	17,193,000
Gross Profit	1,032,000	559,000	332,000	933,000	1,453,000	821,000	1,350,000	711,000	2,856,000	4,335,000
Operating Expenses:
Selling	645,000	585,000	927,000	720,000	654,000	573,000	693,000	738,000	2,877,000	2,658,000
Marketing	215,000	192,000	243,000	365,000	585,000	559,000	585,000	665,000	1,015,000	2,394,000
General and administrative	1,162,000	840,000	992,000	1,004,000	897,000	878,000	884,000	716,000	3,998,000	3,375,000
Impairment loss					2,014,000	0	0	0
Gain on sale of business	0	(195,000)	0	0	0	0	0	0	(195,000)	0
Total Operating Expenses	2,022,000	1,422,000	2,162,000	2,089,000	4,150,000	2,010,000	2,162,000	2,119,000	7,695,000	10,441,000
Operating Loss	(990,000)	(863,000)	(1,830,000)	(1,156,000)	(2,697,000)	(1,189,000)	(812,000)	(1,408,000)	(4,839,000)	(6,106,000)
Other income:
Other income (expense)	41,000	(15,000)	(2,000)	9,000	15,000	36,000	22,000	32,000	33,000	105,000
Loss Before Taxes	(949,000)	(878,000)	(1,832,000)	(1,147,000)	(2,682,000)	(1,153,000)	(790,000)	(1,376,000)	(4,806,000)	(6,001,000)
Income tax expense (benefit)	12,000	8,000	11,000	(222,000)	(77,000)	(56,000)	(131,000)	(160,000)	(191,000)	(424,000)
Net Loss	$ (961,000)	$ (886,000)	$ (1,843,000)	$ (925,000)	$ (2,605,000)	$ (1,097,000)	$ (659,000)	$ (1,216,000)	$ (4,615,000)	$ (5,577,000)
Net loss per share:
Basic	$ (.55)	$ (.51)	$ (1.07)	$ (.53)	$ (1.52)	$ (.64)	$ (.39)	$ (.72)	$ (2.66)	$ (3.27)
Diluted	$ (0.55)	$ (.51)	$ (1.07)	$ (.53)	$ (1.52)	$ (.64)	$ (.39)	$ (.72)	$ (2.66)	$ (3.27)
Shares used in calculation of net loss per share:
Basic	1,745,000	1,740,000	1,725,000	1,724,000	1,720,000	1,712,000	1,698,000	1,694,000	1,734,000	1,706,000
Diluted	1,745,000	1,740,000	1,725,000	1,724,000	1,720,000	1,712,000	1,698,000	1,694,000	1,734,000	1,706,000
Services
Total Net Sales	$ 5,054,000	$ 4,317,000	$ 3,133,000	$ 4,400,000	$ 5,612,000	$ 4,295,000	$ 5,320,000	$ 4,576,000	$ 16,904,000	$ 19,803,000
Cost of goods sold									13,934,000	15,756,000
Products
Total Net Sales	0	118,000	214,000	246,000	563,000	254,000	407,000	501,000	578,000	1,725,000
Cost of goods sold									533,000	1,437,000
As Previously Reported
Total Net Sales	5,108,000	4,491,000	3,388,000	4,682,000	6,318,000	4,654,000	5,842,000	5,140,000	17,669,000	21,954,000
Cost of services	3,981,000	3,764,000	2,807,000	3,382,000	4,224,000	3,514,000	4,044,000	3,974,000
Cost of goods sold	41,000	112,000	208,000	172,000	498,000	214,000	333,000	392,000	14,467,000	17,193,000
Impairment loss - services	0	0	0	159,000	0	0	0	0
Total Cost of Sales	4,022,000	3,876,000	3,015,000	3,713,000	4,722,000	3,728,000	4,377,000	4,366,000	14,626,000	17,193,000
Gross Profit	1,086,000	615,000	373,000	969,000	1,596,000	926,000	1,465,000	774,000	3,043,000	4,761,000
Operating Expenses:
Selling	645,000	585,000	927,000	720,000	654,000	573,000	693,000	738,000	2,877,000	2,658,000
Marketing	215,000	192,000	243,000	365,000	585,000	559,000	585,000	665,000	1,015,000	2,394,000
General and administrative	1,149,000	825,000	980,000	993,000	881,000	865,000	870,000	708,000	3,947,000	3,324,000
Impairment loss					2,014,000	0	0	0
Gain on sale of business	0	(195,000)	0	0	0	0	0	0	(195,000)	0
Total Operating Expenses	2,009,000	1,407,000	2,150,000	2,078,000	4,134,000	1,997,000	2,148,000	2,111,000	7,644,000	10,390,000
Operating Loss	(923,000)	(792,000)	(1,777,000)	(1,109,000)	(2,538,000)	(1,071,000)	(683,000)	(1,337,000)	(4,601,000)	(5,629,000)
Other income:
Other income (expense)	64,000	6,000	16,000	24,000	29,000	46,000	30,000	37,000	110,000	142,000
Loss Before Taxes	(859,000)	(786,000)	(1,761,000)	(1,085,000)	(2,509,000)	(1,025,000)	(653,000)	(1,300,000)	(4,491,000)	(5,487,000)
Income tax expense (benefit)	12,000	8,000	11,000	(222,000)	(50,000)	(47,000)	(165,000)	(204,000)	(191,000)	(466,000)
Net Loss	$ (871,000)	$ (794,000)	$ (1,772,000)	$ (863,000)	$ (2,459,000)	$ (978,000)	$ (488,000)	$ (1,096,000)	$ (4,300,000)	$ (5,021,000)
Net loss per share:
Basic	$ (.49)	$ (.46)	$ (1.03)	$ (0.50)	$ (1.43)	$ (.57)	$ (.29)	$ (.65)	$ (2.48)	$ (2.94)
Diluted	$ (.49)	$ (.46)	$ (1.03)	$ (0.50)	$ (1.43)	$ (.57)	$ (.29)	$ (.65)	$ (2.48)	$ (2.94)
Shares used in calculation of net loss per share:
Basic	1,745,000	1,740,000	1,725,000	1,724,000	1,720,000	1,712,000	1,698,000	1,694,000	1,734,000	1,706,000
Diluted	1,745,000	1,740,000	1,725,000	1,724,000	1,720,000	1,712,000	1,698,000	1,694,000	1,734,000	1,706,000
As Previously Reported | Services
Total Net Sales	$ 5,108,000	$ 4,373,000	$ 3,174,000	$ 4,436,000	$ 5,755,000	$ 4,400,000	$ 5,435,000	$ 4,639,000	$ 17,091,000	$ 20,229,000
Cost of goods sold									13,934,000	15,756,000
As Previously Reported | Products
Total Net Sales	$ 0	$ 118,000	$ 214,000	$ 246,000	$ 563,000	$ 254,000	$ 407,000	$ 501,000	578,000	1,725,000
Cost of goods sold									$ 533,000	$ 1,437,000