Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Schedule of Segment Information) (Details)

v3.8.0.1
Segment Information (Schedule of Segment Information) (Details) - USD ($)
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Segment Reporting Information [Line Items]      
Sales $ 16,773,685 $ 20,800,079  
Cost of sales 11,595,066 14,835,014  
Gross profit 5,178,619 5,965,065  
Selling, general and administrative expenses 7,152,840 7,037,255  
Restructuring expense 0 387,638  
Operating loss (1,974,221) (1,459,828)  
Other income (expense) 121,946 14,327  
Loss from operations before income taxes (1,852,275) (1,445,501)  
Depreciation and amortization 631,512 873,357  
Capital expenditures 264,000 38,000  
Assets 57,735,514 70,510,000 $ 58,146,261
Intersegment Eliminations [Member]      
Segment Reporting Information [Line Items]      
Sales (227,000) (197,000)  
Cost of sales (19,000) (1,000)  
Gross profit (208,000) (196,000)  
Selling, general and administrative expenses (208,000) (196,000)  
Restructuring expense    
Operating loss    
Other income (expense)  
Loss from operations before income taxes  
Depreciation and amortization    
Capital expenditures    
Assets (27,000) (27,000)  
Suttle [Member]      
Segment Reporting Information [Line Items]      
Sales 6,973,000 8,772,000  
Cost of sales 5,598,000 7,714,000  
Gross profit 1,375,000 1,058,000  
Selling, general and administrative expenses 2,256,000 2,210,000  
Restructuring expense   388,000  
Operating loss (881,000) (1,540,000)  
Other income (expense) 24,000 (11,000)  
Loss from operations before income taxes (857,000) (1,551,000)  
Depreciation and amortization 414,000 591,000  
Capital expenditures 227,000 23,000  
Assets 17,025,000 32,824,000  
Transition Networks [Member]      
Segment Reporting Information [Line Items]      
Sales 9,153,000 9,004,000  
Cost of sales 5,226,000 5,119,000  
Gross profit 3,927,000 3,885,000  
Selling, general and administrative expenses 3,715,000 3,739,000  
Restructuring expense    
Operating loss 212,000 146,000  
Other income (expense) (2,000) (5,000)  
Loss from operations before income taxes 210,000 141,000  
Depreciation and amortization 141,000 187,000  
Capital expenditures 20,000  
Assets 13,813,000 15,426,000  
JDL Technologies [Member]      
Segment Reporting Information [Line Items]      
Sales 710,000 2,864,000  
Cost of sales 728,000 1,903,000  
Gross profit (18,000) 961,000  
Selling, general and administrative expenses 486,000 576,000  
Restructuring expense    
Operating loss (504,000) 385,000  
Other income (expense)  
Loss from operations before income taxes (504,000) 385,000  
Depreciation and amortization 63,000 77,000  
Capital expenditures 2,000  
Assets 1,243,000 5,427,000  
Net2Edge [Member]      
Segment Reporting Information [Line Items]      
Sales 165,000 357,000  
Cost of sales 62,000 100,000  
Gross profit 103,000 257,000  
Selling, general and administrative expenses 904,000 708,000  
Restructuring expense    
Operating loss (801,000) (451,000)  
Other income (expense) (8,000) 35,000  
Loss from operations before income taxes (809,000) (416,000)  
Depreciation and amortization 14,000 18,000  
Capital expenditures 17,000 9,000  
Assets 1,732,000 1,468,000  
Other [Member]      
Segment Reporting Information [Line Items]      
Sales    
Cost of sales    
Gross profit    
Selling, general and administrative expenses    
Restructuring expense    
Operating loss  
Other income (expense) 108,000 (4,000)  
Loss from operations before income taxes 108,000 (4,000)  
Depreciation and amortization  
Capital expenditures 4,000  
Assets $ 23,950,000 $ 15,392,000