Quarterly report pursuant to Section 13 or 15(d)

Notes and other obligations (Narrative) (Details)

v3.7.0.1
Notes and other obligations (Narrative) (Details)
3 Months Ended
Mar. 31, 2017
USD ($)
Future Maturities:  
2017 $ 56,000
Mortgage Notes [Member]  
Debt Instrument [Line Items]  
Amortization period 15 years
Balloon maturity period 5 years
Commercial Banks [Member] | Mortgage Notes [Member]  
Debt Instrument [Line Items]  
Fixed interest rate 3.95%
Periodic payments, principal and interest $ 11,700
Periodic payments, interest $ 4,500
U.S. Small Business Administration [Member] | Mortgage Notes [Member]  
Debt Instrument [Line Items]  
Fixed interest rate 5.86%
Periodic payments, principal and interest $ 9,000
Periodic payments, interest $ 3,500