Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock Compensation - Summarizes Information About Stock Options Outstanding and Stock Options Exercisable (Details)

v3.8.0.1
Stockholders' Equity and Stock Compensation - Summarizes Information About Stock Options Outstanding and Stock Options Exercisable (Details)
12 Months Ended
Dec. 31, 2017
$ / shares
shares
Stockholders' Equity [Line Items]  
Number Outstanding | shares 361,000
Weighted Average Exercise Price $ 1.37
Exercise Price Range One [Member]  
Stockholders' Equity [Line Items]  
Range of Exercise Price, Low 1.17
Range of Exercise Price, Up $ 1.36
Number Outstanding | shares 90,000
Weighted Average Remaining Contractual Life 1 year 1 month 16 days
Weighted Average Exercise Price $ 1.20
Exercise Price Range Two [Member]  
Stockholders' Equity [Line Items]  
Range of Exercise Price, Low 1.36
Range of Exercise Price, Up $ 1.65
Number Outstanding | shares 264,000
Weighted Average Remaining Contractual Life 2 years 2 months 23 days
Weighted Average Exercise Price $ 1.57
Exercise Price Range Three [Member]  
Stockholders' Equity [Line Items]  
Range of Exercise Price, Low 2.00
Range of Exercise Price, Up $ 2.15
Number Outstanding | shares 6,000
Weighted Average Remaining Contractual Life 6 years 9 months
Weighted Average Exercise Price $ 2.15