Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details)

v3.8.0.1
Subsequent Events (Details) - Subsequent Event [Member] - USD ($)
Feb. 06, 2018
Feb. 01, 2018
Jan. 26, 2018
Subsequent Event [Line Items]      
Common Stock, Dividends, Per Share, Declared $ 0.13    
Restricted Stock [Member]      
Subsequent Event [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   34,202  
Minimum [Member]      
Subsequent Event [Line Items]      
Long-term Purchase Commitment, Amount     $ 453,000
Maximum [Member]      
Subsequent Event [Line Items]      
Long-term Purchase Commitment, Amount     $ 3,600,000