XML 34 R23.htm IDEA: XBRL DOCUMENT v3.8.0.1
Selling Arrangement (Details Narrative) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]      
Payments for arrangements to sell signs     $ 4,000,000
Term of arrangement     10 years
Customer Contracts [Member]      
Finite-Lived Intangible Assets [Line Items]      
Amortization expense $ 100,000 $ 100,000  
2018 400,000    
2019 400,000    
2020 400,000    
2021 $ 117,000