XML 52 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
NOTE 7 - Contracts with Customers (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Revenue from Contract with Customer [Abstract]    
Contract with Customer, Asset, Accumulated Allowance for Credit Loss $ 465 $ 425
Contract with Customer, Asset, Net 12,646 12,032
Deferred Sales Commission 2,333 $ 636
Amortization of Deferred Sales Commissions 284  
Deferred Revenue 4,705  
Revenue, Remaining Performance Obligation, Amount $ 27,300  
Revenue, Remaining Performance Obligation, Percentage 70.00%  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period 12 months