XML 52 R38.htm IDEA: XBRL DOCUMENT v3.20.4
Basis of Presentation and General Information (Narrative) (Details)
 1 Months Ended 12 Months Ended
Jan. 02, 2021
$ / shares
Dec. 31, 2012
$ / shares
Jan. 01, 2021
USD ($)
customer
segment
$ / shares
Dec. 27, 2019
USD ($)
customer
$ / shares
Dec. 28, 2018
USD ($)
customer
$ / shares
Basis Of Presentation And General Information [Line Items]          
Dividend declared | $ / shares   $ 0.10 $ 0.38 $ 0.36 $ 0.34
Dividends payable nature     In addition, during 2020, the Company’s Board of Directors approved the increase in the frequency of dividend payments to a quarterly basis. During 2020, the Company funded one semi-annual dividend that was declared in 2019 and three quarterly dividends declared in 2020, including the dividend declared in the fourth quarter of 2020.    
Period of intangible assets amortized     5 years    
Amortization of Intangible Assets     $ 977,000 $ 1,036,000 $ 2,369,000
Future amortization expense, 2021     900,000    
Future amortization expense, 2022     300,000    
Revenue recognized as a result of change in contract liability     9,200,000 7,700,000  
Deferred commissions     1,500,000 1,600,000  
Commissions expense     1,500,000 $ 1,400,000  
Impairment loss recognized to capitalization of deferred commission     $ 0    
Number of customers accounted for more than five percent of revenue | customer     0 0 0
Number of operating segments | segment     1    
ASU 2016-13 [Member]          
Basis Of Presentation And General Information [Line Items]          
Change in accounting principle, accounting standards update, adoption date     Jan. 31, 2020    
Change in accounting principle, accounting standards update, adopted     true    
Change in accounting principle, accounting standards update, immaterial effect     true    
Minimum [Member]          
Basis Of Presentation And General Information [Line Items]          
Useful life of property and equipment     3 years    
Business relationship agreement period     6 months    
Maximum [Member]          
Basis Of Presentation And General Information [Line Items]          
Useful life of property and equipment     10 years    
Business relationship agreement period     12 months    
Customer contract period     12 months    
Subsequent Event [Member]          
Basis Of Presentation And General Information [Line Items]          
Dividend declared | $ / shares $ 0.40